Pool In Line Filter? The 139 Latest Answer

Pool filters have several settings, many of which you will rarely use. Most of the time, you want to leave the device set to “Filter,” which draws water out of the pool, filters it, and sends the filtered water back into the pool. Many filters also have an “air recirculation” or “auxiliary recirculation” setting. Although you won’t use this setting often, it can sometimes be useful and it’s good to know what it means.

A swimming pool seems simple, but keeping the water crystal clear and clean requires many components that depend on each other to function properly. If just one of these parts fails, water quality and your comfort can quickly go downhill and possibly even damage other components. The pump and filter are two of the most critical parts of any pool, whether inground or above ground, to keep the water properly filtered, circulated and treated.

Water flows back into your pool through return jets embedded in the pool walls. If you spend a lot of time in the pool, the pump may run continuously to provide consistent filtration and circulation. To conserve electricity, many private pool owners connect their pumps to timers to limit circulation to times when the pool is most used.

Pool pumps circulate water from the pool, through the filter, and back to the pool to remove dirt and debris. The pool pump is usually located next to the filter in a concrete pit or recess below the pool water level, allowing water to flow into the pump by gravity. Water entering the pump inlet is first passed through a strainer basket in the pump housing to remove large debris. The water then circulates through the filter and then through the heater if one is installed.

A pre-filled system means that all parts, including the pump, filter and pipes, have sufficient water in them to function properly. Sometimes your pool pumping system can lose its prime and air can enter the system, stopping water circulation. Priming your pump simply means getting enough water into the pump to get it working again. It’s something you can expect to do occasionally as part of your pool’s maintenance.

The most common cause of a pump losing efficiency is evaporation when the pool water level falls below the inlets in the skimmer. Adding water to the system will bring the pool back to the correct water level. You can also add water to the pump to get it working again.

How long should I run my pool pump?

Ideally, you should keep your pump running 24 hours a day, but we know that’s unrealistic (and expensive), so let’s look for a solution that will keep your pool clean and your wallet full.

A rule of thumb

In general, running your pool pump 12 hours a day is a good option. This is based on the assumption that your average pool pump has a turnover rate of around 8 to 12 hours.

This means that the total volume of your pool water is filtered through your system 2 to 3 times per 24 hours. In a private pool, the water should be circulated at least once a day.

So you can feel safe when you decide to run your pool pump 12 hours a day.

The exact way

For those looking for an exact answer, you can find it with this equation:

(pool volume / filtration rate) = hours for 1 turnover

Let’s break the equation down a little further:

Pool Volume: Reach this number by multiplying length by width by average depth. Then multiply that number by the standard multiplier for your pool shape (7.5 for rectangles or squares and 5.9 for other shapes).

Example: A 20×40 rectangular pool with an average depth of 5 feet.

20 x 40 x 5.5 x 7.5 = 33,000

Filtration Rate: This requires knowing the flow rate of the pump, which includes the resistance to flow in your plumbing (larger pools and pools with water features have higher resistance). Your pump manufacturer should be able to tell you the flow rate of your pump. An average 1 horsepower pump will pump 50 gallons per minute which is 3,000 per hour.

Calculate the turnover rate by solving the equation

(pool volume / filtration rate) = hours for 1 turnover

(33,000 / 3,000) = 11

In this case, one rotation takes 11 hours. This is pretty close to our rule of thumb, but depending on your pool and pump, you may need to run your pump more or less than the 11 hours listed in this example.

Investing in a variable speed pump

An alternative to both of these options is to invest in a new pump. The great thing about a variable speed pump is that you can run it 24 hours straight without breaking the bank.

For regular filtration you can set your variable speed pump on a low setting and then turn it up to a higher setting when you are cleaning the water or adding chemicals.

While they can come with a high initial cost, nothing beats a variable speed pump when it comes to balancing clean water with low energy costs.

When to run your pump

If you decide to stick with a single speed pump, it is generally best to leave it running overnight. How to keep your energy costs down by avoiding premium usage times. Just remember that you still need to keep your pump running when you add chemicals, so you may need to deviate from your schedule every now and then.

Find the right option for your pool

When it comes to how long you need to run your pool pump, there is no one-size-fits-all answer. There are a number of options and ultimately you need to find the right timing for your pool and pool equipment.

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Your filter is your last line of defense to constantly trap debris and keep it out of your pool. That’s why it’s so important to use the right type and keep it as clean as possible. Each type of filter has its advantages and disadvantages. The clarity you want, the environment, and your willingness to maintain the filter and its equipment will determine which type is best for you.

What is a micron?

A micrometer is 1 millionth of a meter. For comparison: a human hair has a diameter of about 70 microns.

There are many factors that determine how effectively any filter can do its job, including filter area, water pressure, and the size of particles it can capture. This ability is based on the micron size. A filter that captures particles about 5 microns wide will collect more material than one that captures particles between 25 and 30 microns in size.

Below is a breakdown of the different types of pool filters and their benefits.

1. Clear water:

What is a sand filter?

A sand filter is basically a large container of sand that traps dirt and debris when water is forced through it. There are two types of sand filters used for swimming pools. The most common is the heavy-duty sand filter, which uses sand as the filter media. The other is a high velocity sand filter and uses layers of rock and gravel as support on top of the sand layer. As water flows through the sand bed, dirt and debris are trapped by the sand grains. Sand filters can also use zeobrites to increase their cleaning power.

Sand filters use 20 degree silica sand that can capture particles as small as 20-30 microns.

Maintenance: Sand filters are considered the easiest to maintain. Sand filters will backwash when the pressure is 10 psi above normal operating levels. With the right water chemistry, you can expect your filter media to last 5-10 years.

2. Clearer water:

What is a cartridge filter?

Cartridge filters use replaceable paper or fabric-like pleated cartridges as the filter medium. Cartridges have a large surface area to catch whatever the water pushes through them. A cartridge filter generally has a cartridge inside. However, for a larger cleaning area, some models may have multiple cartridges in the tank. These are sometimes called quad filters. In Texas, where large pools are common, these types of filters are commonly used.

Cartridge filters can capture particles as small as 10-20 microns.

Maintenance: How long a filter element lasts depends on many variables, including its care and environment. The more dirt, vegetation, operating hours, body oils, scale and dogs a pool is exposed to, the greater the strain on the filter element.

Individual cartridges must be removed, sprayed and soaked when the pressure gauge reads 10 psi above the normal level. Use a good cleaning product like Suncoast Spray & Rinse Pool Filter Cleaner or Suncoast Cartridge Cleaner to remove debris and oils that are hindering filtration.

3. Clearest water:

What is a kieselguhr filter?

Often referred to as DE, diatomaceous earth is made up of the skeletons of microscopic sea creatures. This type of filter is the most complex, but also the most effective. Because they can remove such small particles, they say DE filters “polish” the water as it passes through the media.

DE filters work by forcing water through the diatomaceous earth, which traps the dirt and algae. These upright cylindrical tanks have long, crescent-shaped, rectangular grilles or fingers. A spreader connected to a collector or distributor separates these grids and holds them in place. Water flows through the tank and then flows through the diatomaceous earth. It then passes through the filter screens and finally the distributor before returning to the pool.

DE filters remove the smallest particles of all filters, from 3-5 microns.

Servicing: Must be backwashed like a sand filter when pressure is 10psi above normal level. New DE powder must also be added to the filter. DE filter media can last 10 years or more depending on water chemistry and maintenance.

If you need help choosing or would like more information, please visit your local Pinch A Penny store.

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How often should you replace your swimming pool filter?

Your pool filter is like the kidney of your pool: it filters out dirt and unwanted impurities, leaving you with fresh, clean water.

It is extremely important that your filter works effectively whether you have an indoor pool or a small above ground pool for the summer. In this guide, we look at when to replace your filtration system and how to keep your water cleaner for longer.

Contents:

How do pool filters work?

Pool filters are really simple. A pump pushes water through a narrow space that only lets clean water through, collecting small dirt particles and removing them from the water.

Types of swimming pool filters

There are different types of pool filters, and which one is right for you often depends on the type and size of your pool.

In general, swimming pool filters are divided into three categories:

– cartridge filter

– Sand filter

– Glass filter

A small pool, such as a temporary above-ground pool or hot tub, often uses a filter cartridge. This filter is less effective than sand or glass, but is the simplest and cheapest option, making it perfect for smaller pools.

A filter cartridge is typically round like a barrel and made of polyester fabric or corrugated cardboard. Pools with this filter push water into the cartridge, which catches any dirt.

However, most swimming pools opt for filter pumps that use sand or glass media. Here the filter is part of the pump system itself, filtering the debris on its way and returning clean water to the pool.

Sand filter media works by running water through a canister of sand (usually silica or pool grade, not just from the beach!). The smaller water particles pass, but the larger particles get caught and make for clean water.

Glass filter media works the same way. However, glass filter media tends to be more efficient and can capture particles about 1/4 the size of sand filters. Therefore, they tend to be more effective.

How long do pool filters last?

Your swimming pool pump system can expect to pump 60-70,000 gallons of water every 8 hours. That is a lot of work!

Like all things, swimming pool filters become less effective with age! When the filter is past its prime, it becomes clogged, dirty and ineffective.

How long your pool filter lasts ultimately depends on how much debris it needs to clean. Assuming you are properly maintaining your pool, you should expect the following timescales on average:

– Filter cartridge – approx. 2,000 operating hours, typically approx. 2-4 years.

– Sand filter media – approx. 3-7 years

– Glass filter media – approx. 7-15 years

When to clean your pool filters

If your pool filter has deteriorated, it does not necessarily need to be replaced. All filters need to be cleaned regularly to be able to perform at their best.

If you are using a cartridge filter, remove it and rinse thoroughly with a stiff brush and hose, using a specialty cleaner if available. Aim to do this once a week for optimal filter life.

To maintain a glass or sand-based pump filter system, you perform a process known as backwashing. Most pump systems come with a backwash option that allows the water to flow in the opposite direction, removing clogged debris from the filter.

You should attempt to backwash your pool filters when the pressure has increased by about 8 to 10 psi from its normal levels. With heavy use, this happens every week, and sometimes more often.

This will tell you when your filters need to be replaced

As mentioned above, some symptoms of a poorly performing filter can be due to uncleanliness. However, there often comes a point when cleaning your filter is not enough and it needs to be replaced.

Here are some of the signs to look out for when considering a filter change:

Rapid underperformance

If your filter is clogging or stops cleaning more often than expected, even with frequent backwashing, it may have lost its quality.

expiry date

Due to their design, filter cartridges often have an expiration date. However, all filters have a predicted lifespan. If this passes, it may be best to replace the filter.

Damaged filter

This point applies to filter cartridges, which can crack over time. In this case you need to replace the filter.

How often should you change your pool filter?

You should change your pool filter whenever it is declining in quality, has exceeded its expected lifespan, or shows signs of damage. Symptoms often occur every five years, but the time frame can range from annually to every 15 years.

When to change a sand filter

Sand filters can often work for around three to seven years, depending on usage.

If you clean and backwash your filter frequently and only use the pool seasonally, you can expect to replace it after at least five years. Although sand filters can still be good for a few more years, we recommend replacing your filter media at this point to maintain a healthy pool system over the long term.

When should a glass media filter be changed?

Glass filter media is known for its longevity – with good care, it may not need replacing for over a decade!

Glass filter media can last well beyond the time span of sand media. However, we also recommend replacing them every five years to keep your pool systems running efficiently.

When does a filter cartridge have to be changed?

You can usually visually tell if your filter cartridge is working or not, but it is always recommended to replace it once it has passed its expiry date. Depending on the brand, this date is often after a year or two. If you see a crack in the filter, it needs to be replaced.

Pool filter clogs too quickly? Longevity Tips

Ultimately, the lifespan of a filter depends on how much dirty water it has to clean. If you want to extend the life of your filter, take care of your pool regularly and follow the rules of cleanliness.

Pool water quality management

The most important thing is to maintain the right chemical balance on a daily basis. Using the right chemicals will stop algae build-up and help fight other dirt and debris, putting less stress on your pool filters.

Note that while clarifying agents and similar products will keep your pool looking clean, they can clog your filter even more. Ultimately, there is no substitute for frequent chemical management.

Clean swimmers

The more the pool is used, the dirtier it is likely to get.

Pool users bring pollutants into the pool, which ultimately end up in the filter. This can include body oils, shampoos, drinks and more.

If you want to maintain your swimming pool, there are steps you can take to minimize human impact.

– Shower First – Shower before entering the pool to remove some of the contaminants that end up in the filter.

– No Eating or Drinking – Encourage people to eat or drink anything before or after their swim, not while swimming!

Taking care of your pool filters when not in use

Another thing to consider is what happens to your filters when the pool is not in use. If you use your small pool seasonally, make sure your cartridge filters are properly stored out of season. Be sure to check them out before the next season starts too, as they can sometimes lose their quality over time even if they’re not used.

Pump filtration systems should be run from time to time, even out of season, to keep the chemicals in the water working. Therefore, you need to monitor your filters out of season. As with your entire pool, investing in a cover and properly closing your pool will help keep your filters working efficiently.

Choosing the best pool filter

The filter is a crucial part of your pool, so you need to get a quality piece of equipment. Choosing a good pool filter will save you a great deal of money and effort in the long run, so it pays to seek advice from experts like our team at 1st Direct Pools.

Home pool filter

When it comes to home pool filters, they often fall into two categories:

– Side mounted filters

– Top mount filter

Both are essentially the same, except that the valves and other features are either on the top or the side of the filter. Whether you need a top or side filter often depends on how your pool is set up – it should be clear which one fits.

Many household filters have the same functions, so the most important thing to consider is the pressure. Make sure the filtration system you choose can withstand the power of your pool pump. Also make sure it is of solid construction as cracks will cause significant headaches.

Here at 1st Direct Pools we often recommend the Hayward NC600. This model is easy to use and extra durable, with a polyester and fiberglass shell – an excellent option for residential pools.

Another model that we highly recommend is the Tagelus Top Mount Filter. Again, this is a durable model designed for maximum reliability and easy maintenance, making it a great choice for owners with less pool experience.

Commercial pool filters

Commercial pools have additional pool filter requirements. First, they are usually larger and used more often, so the pressure is more intense. However, there are also issues such as timing and regularity of use. The filter needs constant maintenance, much more so than with a home pool.

If you run a small commercial pool, we recommend the Lacron 24 Finaflow MBF. This model works with an operating pressure of 2.5 bar and a flow rate of 15 m3/h and is also equipped with a practical sight glass that allows checking during operation.

filter media

With the vast majority of filters, you will need to purchase the media separately, as they need to be replaced more often than the actual mechanics.

Most filters that can work with sand media will also work with glass. If your filter uses a cartridge, you must continue to use a cartridge.

In general, sand filter media is a good choice in most cases. However, if you’re willing to pay more, glass filter media is more effective at cleaning small particles and can last longer, so it’s often worth the investment.

1st Direct Pools supplies everything you need for a pristine swimming pool. From swimming pool filters, sand and glass filter media, pool and hot tub chemicals and more! We’re your one stop shop for all things swimming pools, so browse our collections or contact us with any questions or suggestions!

The simple answer most pool professionals will give to the stumped pool owner is a resounding “no”. This answer usually allays your worries due to its simplicity, but here at Inyo we like to dig a little deeper. So here we are to lay out the rationale behind the “go big or go home” logic of pool filters.

flow rates

Take a look at your current filter’s tag (if it’s still legible) and you’ll notice the jumble of numbers and ratings that adorn it. The list will likely include maximum working pressure, filtration rate, filter media requirements, and even clearance. All of this information is important for the proper operation and installation of the filter. Without the reviews above, we wouldn’t know when to clean or replace the filter media. Knowing the correct distance also helps us not to throw the filter in an area that makes it completely inaccessible for maintenance. All this information you need to know!

Do you see a minimum flow rate in the jumble of numbers? no This is because there is no true “minimum flow rate” of a filter. Filling up the tank can take longer if we have a ½ horsepower pump on a standard 800lb sand tank, but the filter is still cleaning the water to the same standard.

Advantages of oversizing

maintenance

The primary benefit of over-sizing a filter is the reduction in cleaning throughout the pool season. With the larger filter, there is more media for the dirt to disperse in, allowing the water to flow freely. The larger the cartridge, the more dirt it can capture. The more dirt it traps, the longer we can go between backwashes or cartridge washdowns. And what does that mean for the sometimes lazy homeowner like me? LEISURE TIME!

Even the most ardent pool freak takes no pleasure in backwashing a sand filter on a hot Saturday in July. Oversizing is a no-brainer for the person who constantly monitors their pressure gauge as it reduces the likelihood of seeing DEFCON 1 type pressure readings. By increasing your filter media, you increase the area where dirt and debris is held, allowing the filter to maintain optimal water pressure for longer.

Motor longevity

Your motor’s only job is to draw water from your pool and send it through the filtration system. It’s a simple but difficult task. This task is made more difficult when the engine has to fight back pressure build-up from an overloaded filter, causing problems for both units.

For example, let’s say our pump is rated at 100 gallons per minute (GPM), but our pool filter can realistically only handle 50 GPM; The 50 GPM overflow stresses your system in two ways: overstressing the filter, which will likely lead to premature failure, and second, the engine is overworking as it tries to push against the growing back pressure. The resulting battle between the filtration capacity of the filter and the flow rate of the pump eventually leads to a costly repair bill after one or both of the interruptions.

If we change the flow rates and set the filter to 125 GPM and the pump to 100 GPM, the filter can easily handle the flow rate of the pump. Also, the added buffer in the filter’s flow capacity compensates for dirty filter media that reduces the actual filtration rate between cleanings. With a properly sized filter, the pool will cycle through the system quickly and effortlessly without testing the limits of your equipment. This ensures a happy and long-lasting filter system.

Change filter media

Increasing the filter size also means there is less stress on the sand, screens or cartridges per square foot. A reduction in workload from both flow rate and debris increases service life. The saying “Less Stress, Longer Life” applies to filter media and pool owners alike. The rigors of high flow rate, high debris load and repeatability of cleaning can put a filter through the press.

The dangers of undersizing

What happens when you overfill a water balloon? It bursts. Now imagine a water balloon big enough to hold 300 pounds of sand doing the same thing. Indeed what a mess. This particular scenario is unlikely to occur with a filter tank, but burst pipes or other line failures can occur. These problems are caused by back pressure created by a filter that cannot keep up with the pump.

Also, the need to clean your filter becomes a constant. When a filter becomes fouled, its flow capacity decreases, resulting in an increase in back pressure. This increase will be visible on the pressure gauge and is the first sign that cleaning is required. If cleaning doesn’t fix the problem, it may be time to replace the sand or cartridge.

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An often overlooked aspect for many pool owners is how long to run your pool filter after shocking your pool. That’s a question many pool owners have and a question we have the answer to!

A pool filter should operate for at least 6 hours after a pool has been shocked. This allows the filter to clean the water and give the damper enough time to fully mix with the pool water. Operating the filter for 24 hours to 7 days after shocking is necessary if the pool has a large amount of algae.

Read on to find out why running your pool filter after shocking is so important and how certain situations can change how long you need to run your filter after shocking your pool.

Swimming Pool Equipment System

Why run the pool filter after shocking?

Running your pool filter and pump after shocking is an essential step in keeping your pool looking its best.

The pump and filter must be operated for two reasons:

Circulate and distribute pool shock. Clean and filter the pool water

Leaving for at least 6 hours will allow the shock to circulate and should spread it evenly throughout the pool.

If you are looking for a pool shock check out this one:

DryTec calcium hypochlorite chlorine shock treatment

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Cleaning and filtering the water takes a variable amount of time and depends on how dirty or how much algae your pool has.

But first…

What if the pump doesn’t run long enough?

Here’s what happens if you don’t run your pump long enough after you deliver the shock:

The dampener does not mix properly with all the water

Cloudy or milky pool water

Green Pool (if you have seaweed)

Increase the chances of recurring algae

If you don’t run your pool filter properly after shocking, the added chlorine won’t be able to circulate in your pool.

If the chlorine cannot circulate in the pool, it cannot do its job. If the chlorine isn’t circulating, it won’t be able to sanitize all of the water and your pool may remain cloudy or full of bacteria.

Also, chlorine sitting in one area for too long can stain your pool surfaces, and nobody wants that.

If you don’t run your pool filter properly after shocking, not only can staining and a lack of sanitization result, but the dead algae and other bacteria and debris will not be filtered out of your water.

Anything in the pool at the shock stays in the pool until it has been filtered out and fully sanitized. And if it’s not filtered out, you’ll have a murky pool and potential food for bacteria and algae.

How do you know how long to run your pool pump after shocking it?

The amount of time you leave your pool filter and pump running after shocking depends primarily on the level of algae or contamination in the pool water. The dirtier the pool, the longer you have to run the filter.

Filtering long enough plays an important role in getting your pool water clear. Equally important is the chemical balance.

The best way to tell if you’re running the filter long enough is to keep an eye on the pool to see how the water looks. It will look clear again once you’ve filtered it enough.

However, to give you a guide, check out this table.

Algae Color Filter Run Time After Shock Treatment Light Green 24-48 hours Dark Green Several days (24 hours per day) Black Green Up to a week (24 hours per day) Chart shows how long the pool filter must run after shock treatment.

Which filter setting to use after the shock is delivered

Now that you know how long to run your filter, you should also know what filter setting to use after shocking your pool.

The filter setting is the best setting or filter position to use after shocking your pool. You can also use your filter’s recirculation setting.

Choose the filter setting after shocking your pool.

The filter setting is the filter position you normally use every day. If you shock and run the filter, algae or dirt in the water will pass through the filter and get stuck. As a result, you may need to clean your pool filter every day or so, especially if you have a lot of algae.

For extra clear water, you can use a clarifier later after the shock treatment is complete. The clarifier clumps small particles together, making them easier to filter, resulting in clear water.

Should you use the Circulate filter setting after the shock is delivered?

You can also run your filter on recirculation. This will bypass your filter and circulate the chlorine quickly and efficiently throughout the pool.

Recirculation is great when there are large amounts of debris or algae that could quickly clog your filter if passed through. Recirculating allows the damper to mix and work quickly.

Be aware when using the Circulation setting that the pool will not filter out debris and algae, so they will remain in the water and on the bottom of your pool until you filter or backwash them.

The Circulation setting bypasses the pool’s filter.

So really only use this setting to circulate and mix the pool shock thoroughly (about 6 hours). Then switch to the filter position to filter out the dirt and start cleaning the pool water.

Should you clean the filter or backwash after shock delivery?

You may need to clean your pool filter or backwash if algae is present or your pool is particularly dirty.

After shocking, it’s a good idea to brush the sides of the pool and vacuum up as much algae and debris as possible.

When vacuuming your pool, the vacuuming should be done in a way that dirt and algae don’t get lodged in your filter. Sometimes this is not possible or it is just difficult to waste everything.

A good quality clarifier can be used to enlarge the particles and make them more manageable for the filter.

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HTH 67023 Super Clarifier Swimming Pool Cleaner

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Once the algae and dirt are gone after brushing and vacuuming, you should clean or backwash your filter to keep it running at peak performance.

Why you should shock your pool

Pools see heavy use during the peak season of the year, and along with swimmers come pollutants.

When a steady stream of swimmers comes through your pool, sweat, sunscreen, and bacteria become present. Shocking is an important step in removing these from your pool.

In addition to bacteria from swimmers, environmental factors such as rain and dirt can cause bacteria and algae growth in your pool that needs to be shocked away.

How to shock your pool

Shocking your pool is easy and can be done fairly quickly.

When shocking your pool, you should first mix your shock in a bucket of water to dissolve it.

Once dissolved, pour the shock into your pool while walking around the perimeter. Be sure to distribute the shock as evenly as possible.

If there is algae in your pool, it will turn gray or white when the chlorine has done its job. If the algae are still there after 48 hours, you can shock again.

For a complete guide to shocking your pool, see our article:

How To Shock A Swimming Pool For Beginners (In 6 Easy Steps)

Final Thoughts

Running the filter after shocking your pool is a must and just as important to your pool as shocking.

Be sure to run your filter for at least 6 hours, but shoot for 24 hours to several days if your pool is particularly dirty or has algae to properly circulate the chlorine and clean the water.

To keep your pool clean you need to make sure the filter is free of debris and well maintained. This not only improves the water quality, but also makes the entire pool system work more efficiently.

To keep the filter in good working condition, you need to regularly check its pressure gauge as this will tell you when it needs cleaning – a process known as ‘backwashing’. However, before you start cleaning the filter, you need to have a basic understanding of its various settings and functions.

filter settings

These six settings are typically found in a pool filter.

Filter: This is the basic filter setting of the system and is also used to vacuum the pool

Rinse: This cleans the water poured into the filter canister.

Circulate/Bypass/Recirculate: This setting is used when you need to divert the water back into the pool without passing it through the filter.

Drain/Waste: Selecting the drain or waste setting removes pool water without forcing it through the filter.

Backwash: This removes scale, dirt and other contaminants that may have accumulated on the filter.

Closed: Choosing this setting will stop the flow of water to the pool and filter. Make sure you have turned off the pump before setting this option.

How to backwash a pool filter

Over time, the pool filter becomes clogged with various debris, affecting its ability to function optimally. To remove such dirt, the backwash setting must be implemented. Follow the steps below to backwash your filter.

First, make sure that the power to the system is turned off.

Now move the handle of the multiport valve so that it sits on the backwash option.

When you’re done, turn on the system.

You will now hear how the water overflows in the filter and finally runs into the sewage pipe. After about 2 minutes you will see that the color of the drained water has changed from cloudy to clear. In this case, turn off the power to the system.

Next, change the position of the multiport valve handle to the “flush” position.

Turn the unit back on and let it run on this setting for about a minute. The filter is now filled with clean water.

Now turn off the power and move the handle of the multiport valve to the “Filter” position.

Finally, turn the power back on to complete the backwash process.

You need to ensure that the filter media is changed at the right time according to specifications, which is typically once every 5 years for sand media and 10 years for glass. However, depending on the filtration process, you may need to replace the filter sooner. With cartridge filters, the filter element should be replaced approximately every 18 months.

So follow the steps outlined above and your pool filter will stay clean and problem-free. If you encounter problems with backwashing, don’t hesitate to enlist the help of a certified pool professional.

At Poolside North Shore, we help people fix their pool problems every day. Call us on 0800 800 744 and we’ll be happy to answer all your questions!

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You are new to pools and know you need to use the valve on top of the filter. But it’s a complicated looking valve with a lot of adjustments. Where is the simple on/off switch? There are several different settings to choose from. So how do you know which position to choose and when?

The “Filter” setting on a multi-port pool filter valve is used to filter the pool water and is the primary setting. The backwash and rinse positions are used to backwash the filter, and the waste position is used to drain water or vacuum a dirty basin. There are lesser-used positions like Hibernate, Recirculate, and Close for other special tasks.

All of these adjustments and positions play an important role in maintaining the health and daily functioning of your pool, but knowing when each is needed will make your life easier and your pool happier.

What is a multiport pool filter valve?

Multi-port valves (MPVs) are typically found in pools with a sand or DE (diatomaceous earth) filter. These valves contain multiple ports that change the direction of the water in multiple directions to perform different functions.

Knowing which setting to use can be a chore, so let this guide help ease your pool valve worries.

Pool filter with multiport valve

What are the different valve settings?

The range of settings on a multiport pool valve is there to get the most out of your pool and to maintain it properly. These seven settings are explained below, so read on and become more confident with your MPV.

filter

Waste

recirculate

backwash

Wash

Closed

hibernate/hibernate

Pro Tip: Before we dive in, it’s important to turn off the pump before using any of the multiport settings. Failure to do this will increase internal pressure within the filtration system and internal pool components, which can cause significant damage to your filter.

What the Filter setting does

The filter setting:

Filters the water

Use this setting the most (99% of the time).

Displays the water flow when the filter valve is in the filter position.

The filter setting allows normal pool filtration to pass the water through whatever type of filter you have e.g. B. Sand or DE. It uses the filter to catch dirt and debris left in the pool water before clean water is returned to the pool. And depending on which filter you have, it can filter out microscopic contaminants like bacteria and algae.

If you have a sand filter, the water enters through the top of the tank. With the DE filter, it enters through the bottom of the tank. After the water has gone through the filtering process, it returns through the multi-way valve before re-entering the pool.

You can use this setting when vacuuming your pool if your filter media can handle the debris size. Vacuuming on this setting saves water, but it’s worth noting that if your pool is particularly dirty, you’re cleaning up after a storm, or you’ve used flocculant in your pool, use the waste setting to keep all that dirt from clogging your filter.

What the “Waste” setting does

The waste setting:

Bypasses the filter

Pumps the water out of the pool from the drain

Use it to vacuum a pool with algae, flakes or mud

Lower the level of the pool a little

Displays the water flow when the multiport valve is in the waste setting.

The Waste setting pumps the water from the pool directly to the drain. It drains the pool water straight through your drain pipe, bypassing the filter.

This setting is one of two “Bypass” settings on the filter valve. You would most likely be using waste when vacuuming a dirty pool.

If there is large debris and dirt on the pool bottom, algae, you have just used a flocculant in your pool, using the waste position is the best option to clean your pool properly.

Perfect for spring cleaning or to get rid of finer dirt.

Sand filters can have trouble properly filtering out fine debris, which is why you can sometimes see a layer of fine sediment at the bottom of your pool after vacuuming on the filter setting.

Two points to keep in mind is making sure your waste outlet is installed correctly otherwise you could accidentally contaminate your garden or surrounding area.

The drain will either be routed into your drainage system or is open ended. If it’s an open end, it’s best to connect a hose to it so you can direct the water to a convenient location.

Using the Waste setting will cause your water level to drop, so it’s wise to ensure a hose is placed in your pool to top up your water supply. Do not let the water fall below the level of the skimmer box.

Again, you need to be careful to balance your water afterwards.

What the Circulation setting does

The recirculation setting:

Bypasses the filter

Pumps the water out of the pool and back into the pool

Can be used to recirculate chemicals without filtering

Displays the water flow when the selector valve is in the recirculation position.

Recirculation is the second “Bypass” setting on the Multiport Pool Valve. This position draws water from the pool but returns it, bypassing the filtration system (think of this as if the water in the multi-port pool valve were about to do an about-face).

You can choose this setting when adding chemicals (such as chlorine or flocculants) to your pool. It helps disperse the chemicals in the water quickly and efficiently without fouling the filter itself.

Recirculation is often used to troubleshoot filter sand problems or when fighting an algal bloom. Because it bypasses the filtration system, you don’t risk clogging the filter with large debris when adding chemicals to a heavily polluted pool.

Another ideal time to use Recirculate is if your pool filter is broken, leaking, or otherwise unusable. It keeps the water moving, avoiding stagnation and algae growth until the filter can be replaced or repaired.

What the Backwash setting does

The backwash setting:

Reverses the water flow of the filter

Cleans the filter through a process called backwashing

The dirty cleaning water exits through the drain

Will lower the level of the pool

Displays the water flow when the multiport filter valve is set to the backwash position.

The backwash setting reverses the flow of water through the diverter valve. Dirt and debris accumulates on the filter media after prolonged pool use, so backwash helps clean the filter by “breaking” the stuck dirt off it.

This setting can be found in sand and kieselguhr filters (DE). Cartridge filters do not use this setting.

If you find that the water circulation has slowed down or the filtration isn’t as effective, backwashing should help solve the problem without the expense of calling a professional. Keeping an eye on the pressure gauge can also help you figure out what’s going on. When it is 7-9 psi above the normal pressure rating, it is time to select the backwash setting to clean the filter.

It uses clean water to flush the impurities in the tank (sand) and grid (DE) through the waste pipe. For best results, leave your MPV on this setting for at least two to three minutes or until the drain runs clear.

You can also use filter cleaners to help Backwash do its job more efficiently. Along with the waste setting, you may need to use a backwash hose to prevent flooding during waste water disposal.

There is usually a clear plastic window called a sight glass along the drain line so you can see the water draining out. If not, you can watch the end of the backwash hose until the water runs clear.

Here is a complete guide to backwashing your filter:

[insert article link to backwash]

What the “Flush” setting does

The flush setting:

Used after backwashing

Prevents dirt and sand from getting back into the pool

Lowers the pool water level

Use for 15-20 seconds

Displays the water flow when the valve is set to the flush position.

Essentially, your MPV’s purge setting does what it says on the tin. It flushes the last traces of dirt and debris from your valve, passes through the filter and exits through the sewer pipe. It flushes out sand and dirt and prevents them from getting back into the pool after backwashing.

If you have a sand filter, it is recommended to run this adjustment after backwashing to flush out any dust particles left in the sand filter bed. It only takes 15-20 seconds to give him the flushing love he needs.

If you have a DE filter, using the flush position can still benefit the filter, especially if it has cracks in the manifold or small holes in the grille. If not, this filter does not need to be rinsed after backwashing.

An added benefit of running flushes is that it can put the filter (sand or DE) back in place. Sometimes they can move around a bit during a backwash, so there’s no harm in selecting this setting after the backwash is complete.

Rinse, along with filter and backwash, are your most commonly used multiport pool valve settings.

What the Closed setting does

The closed setting:

Prevents water from getting to the valve or into the filter

Never start the pump in this position

Can be used to blow out pool lines or work on the pump

This setting is used to shut off the flow of water to and from the multi-port pool valve. It is ideally used when working on the pump and/or filter system itself.

Closed is rarely used, but you can use it in some scenarios. Before you open your pool for the warm season, you can close the valve to blow out the suction lines. Or use it to prevent water from flowing into the tank when the filters are below the water level.

That being said, you can use different settings to get the same end result.

If your pool is higher than your pump, you can also use this setting to empty the pump basket.

What the “Winter/Winterfest” setting does

The winter or hibernation setting:

Use this position when the pool is closed in winter

Prevents the valve from rupturing due to ice in winter

Winter/Winterize is used when you drain the filtration system, either to swap out the sand for new sand, or when you close shop for the winter. It lets air into the valve and helps water drain out of the filter system once the drain cap is removed.

When you close your pool for the season, this adjustment will raise the valve diverter about ¼ inch above the valve openings. In this hanging position it gives the leftover water room to expand into ice without cracking the valve itself.

You may find that sometimes there isn’t a dedicated groove to lock the winterizing/winterizing lever into. It is usually located between the Waste setting and the Closed setting. It does not have its own groove so that the changeover sticks.

Here’s a complete guide to winterizing your pool: How to Winterize an Inground Pool

What setting should my pool filter be on (mostly)?

Your multi-port pool filter valve should be in the filter position most of the time. It is responsible for the daily filtration of your pool. Leaving it on other settings (other than winter/winterize) can result in dirt build-up or worse, algae.

Why should you use recirculation for pool filters?

Recirculation is not used that often. It is typically only selected when you need to work on the filtration system itself or when adding pool chemicals to the pool that you do not want to pass through the filter. It helps to properly distribute chemicals in the water without filtering the water.

What is the difference between flushing and backwashing?

The biggest difference between these two settings is that Flush allows the water to flow in the normal direction. Backwash runs the water backwards through the valve and filter.

The main purpose of backwashing is to clean the filter. Rinsing does not clean the filter like backwashing does. Rinse does just that, rinsing away any residue left in the valve after backwashing.

Nothing is worse than cleaning and backwashing your filter to perfection and only seeing a cloud of dirt spill into the pool after you put the valve back in the filtering position. Using rinse after backwash will keep your pool sparkling.

Can I vacuum my pool with forced air?

It is recommended to vacuum your pool using the filter setting. The filter setting removes all dirt and debris that your filter allows. Choosing to vacuum with recirculation bypasses the filter so you end up just vacuuming the same water and dumping dirty water back into the pool.

You can also vacuum with the debris setting if your pool has a layer of dirt on the bottom.

When should you run the pool on convection?

This setting is often used when troubleshooting filtration system problems or when dealing with heavy debris (like leaves) and algal blooms.

In the event of a build-up of bacteria or algae, Recirculate bypasses the filter, allowing the chemicals that deal with algae to do their job without clogging the filter with dirt or algae.

It can also help diagnose problems with the circulatory system. If you notice slow circulation in your pool, put the lever in the recirculation groove and see what happens to the circulation speed. If it gets better, you’ll know the filter is the culprit.

Is whirlpool the same as recirculation?

Whirlpool is essentially the same as Recirculate. This setting can only be found on some multi-port valves. It can help diagnose problems in the pool related to too much pressure or to check how dirty the sand is.

It also increases flow when it bypasses the filter.

Diagram of Hayward pool filter settings

Hayward Multiport Pool Filter Valve Diagram.

Hayward is famous for making some of the finest pool equipment. Below is a chart of their MPV and the settings listed. Starting at the top and going clockwise:

Filter: normal filtration with the filter medium.

Waste: Bypasses the filtration system to expel water from the pool through the waste pipe.

10 PSI/0.7 Bar (Winter/Winterproof): Used to hang the valve diverter in winter.

Closed: Blocks water from entering and exiting the pool.

Backwash: Reverses the water flow to clean clogged filters.

Recirculation: Bypasses filtration and returns circulating water to the pool.

Rinse: Helps flush out traces of dust and dirt after backwashing.

Final Thoughts

At first glance, a multi-port pool valve can be daunting, but hopefully this guide has given you peace of mind to use your pool’s MPV safely. Now that you understand what each setting does and when to use it, all you have to do is take a relaxing dip in your pristine pool!

When should I run my pool pump? The ultimate guide

Having your own swimming pool is hugely exciting, but there is a lot of maintenance to get your head around! You want to make sure your pool looks sparkling clean all season long, but you don’t want to break the bank on unnecessary bills!

One of the biggest questions when it comes to regular maintenance is the pool pump.

It is not necessary to have your pool pump running all the time as this can be a serious drain on your electricity bills. So how long does it take?

The role of the swimming pool pump

First of all, understanding what your pool pump is doing helps you know when you need it.

Pumps are essentially the heart of your pool, keeping the water circulating through the various cleaning systems. A swimming pool pump forces water through the skimmer baskets, then through the finer filter, before returning it to the pool.

The pump also helps evenly distribute any chemicals you add to the pool.

Ultimately, your pool pump is an essential part of keeping your pool clean and healthy. While your filter removes the dirt, water can’t get there without the pump!

Should the pool pump run continuously?

In an ideal world yes. Actually no.

As explained above, the pool pump is the lifeblood of your cleaning system. The filter can only effectively remove dirt as long as it is active. Therefore, ideally you should keep your pool pump running for as long as possible to keep your pool clean and healthy.

However, the reality for many pool owners is that we simply cannot afford to keep a pool pump running continuously. This is not only expensive, but also not absolutely necessary. Additionally, most residential pool pumps are only rated for 8-10 hours a day (this can vary, so check your pump first).

How long should a pool pump run?

So we know it doesn’t have to be on 24 hours a day, but what time is right for a swimming pool? As with anything else about your pool, the answer can depend on a number of factors, such as:

– The size of your pool.

– The performance of your pump.

– How much the pool is used.

– How much dirt gets into the pool.

However, there are some general rules you can follow to ensure your pool pump runs as long as it needs to.

Sales volume

Commonly, people talk about running your pool pump eight hours a day. However, it’s more important that all your water is properly purified, and that’s where revenue comes in.

It is recommended that you turn your pool water at least once a day or twice per use. But what does that actually mean?

Think of your pool’s pump and filter as a circle. A turnover is when all the water from the pool has flowed through the system and back to the beginning, completing a full cycle.

How you train when your pool has completed a full envelope depends on the next point, flow rate.

flow rate

One of the most important indicators of how long you should run your pool pump is its flow rate. Sometimes called circulation rate, this refers to how much water your pool pump can circulate in a given amount of time.

Flow rate is usually given in gallons per hour (GPH) but can also be given in minutes (GPM) depending on the size. Your filter may also have a maximum flow rate that you need to consider.

Once you have the GPH or GPM of your pump and the volume of water in your pool, you can calculate how long it will take for the water to circulate. Divide the volume by the flow rate. Just make sure the pump has enough water to spin.

When is the best time to run a swimming pool pump?

The recommendation for when to run your pump is in the evening or at night. There’s no hard and fast rule though, and it’s fine to run it during the day too.

Cleaning your water is more important than actually having it happen. Therefore, you can choose a time that is best for you.

Many people choose to leave their pool pump running during the day while it is in use. This choice is perfectly fine and will clean your pool just as well. However, there are some advantages when it comes to running the pump late at night.

Costs

One of the biggest factors in running your pool pump is cost. To reduce electricity bills, you can run your pool pump during off-peak hours, which are usually overnight.

chemicals

To ensure they are evenly distributed throughout the pool, most suppliers recommend that you run your pool pump while adding chemicals to the water. So if you’re balancing your chemicals after a day of swimming, consider running your pool later in the day.

When to run a swimming pool pump out of season

Above, your pool pump will cover up during the season, but what about when winter hits?

In the off-season, you should keep your pump running, just for less time than before. Running your pump is essential for a number of reasons, including:

– Chemicals – You need to circulate your chlorine to clean effectively.

– Freeze – If you live in particularly cold temperatures, leaving the water running will prevent it from freezing over.

– Dirt – If you don’t have a cover (which you should!) you will need to run your pump to remove dirt.

How long you run your pool pump during the off-season depends on how far you’ve closed the pool.

If fully enclosed with a solid pool cover, it might only take an hour or so to keep the water and chemicals flowing. If you have a thin cover you will need to run the filter for about two hours a day to reduce the chance of algae growth.

Hopefully this guide will answer all of your questions about running your pool pump! If you have more questions, explore our blog, which is full of helpful guides. Alternatively you can get in touch with our team here at 1st Direct Pools who will be happy to help.

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A common question I see regularly is whether it is beneficial to run your pool pump during rain or storms. Is it dangerous or unsafe to operate your pool pump and filtration system? Stay tuned as we take a look at what you should be doing.

Operating your pool pump during a thunderstorm or thunderstorm should be avoided as a nearby surge or lightning strike could damage your pump. However, it is beneficial to leave your pump running during this time. The extra filtration helps remove the contaminants that rain has introduced into your pool water.

Pool pumps are designed to withstand rain and it is beneficial to run your pump during or after rain. However, there are situations where water can damage your pool’s pump. You should also make sure you run your pump after it rains.

Let’s take a closer look.

Thunderstorm

Are there times when it’s not safe to run your pool pump in the rain?

It’s perfectly safe to leave your pool pump running when it’s raining – most of the time. Operating your pool pump in the rain should not affect the pumps ability to do the job they were designed to do.

However, if you have drainage issues where the pool pump is installed, this could be a problem. Although pool pumps are typically waterproof and can withstand rain and splashes, they are not designed to be submerged in standing water.

If your pump is in an area known to be flooded, you should unplug your pump before it rains and turn off the breaker. Do not switch it on again until it is completely dry.

If you have this problem, you need to move your pump or fix the drainage problem.

Here’s a quick summary of when it’s safe to run your pool pump during a rain or storm:

Light rain = pool pump is safe to leave on (if the manufacturer declares rainwater safe for the pump and you don’t have drainage problems)

Heavy rain = pool pump is safe to leave on (if the manufacturer declares rainwater safe for the pump and you don’t have drainage problems)

Electrical Storm = Turn off and unplug all electrical devices from your pool.

What does rain do to your pool?

If you want to maintain a healthy pool to swim in all year round, you need to know what and how the weather affects your pool.

Rain changes the pH of the water

The pH value is the measure of the acidity of the water. pH values ​​that are too low or too high indicate that the water may not be suitable for swimming. Incorrect pH levels can cause skin and eye irritation, and also mean the chlorine isn’t as effective at killing bacteria and algae.

Heavy rains can change the pH significantly. pH imbalances in your pool result in:

Acidic water (not good for swimmers and can corrode pool equipment)

Alkaline water (a high pH causes scale and stains, and in turn is not good for swimmers)

Brings pollutants into the pool

Rain brings with it contaminants such as bacteria, insects, soil, pesticide runoff, phosphates, etc. However, it’s not just the rain from the sky, it’s also rain runoff that comes from the garden around your pool, patio, or from the entire pool, which can introduce dirt, debris, and bacteria.

Additional contaminants mean you will need to filter your water more and the pool’s chlorine demand will be higher. In other words, run your filter more and add more chlorine during and after rain.

flooding

When your pool is flooded or overcrowded, sanitizing chemicals have reduced potency because the rain has “watered them down” and reduced concentration.

It also means that the cleaning chemicals can disperse into your surrounding pool areas and cause further damage to your garden and lawn.

What are the benefits of running a pool pump when it rains?

Pool equipment and pump

Now you know what problems rain can cause. So how can you minimize these problems that cause rain and storms?

Keep your pump running!

Advantages of running pump in the rain:

Circulate the rainwater and mix it with the existing pool water.

Filter out impurities in the water (very important!).

Helps fight algae but removes and filters organic matter (algae food).

Make sure your pump is running at its best:

Remove any debris from the pump strainer and skimmer baskets.

Check and adjust the pH.

Top up with disinfection chemicals (e.g. chlorine) if necessary.

Consider an algaecide.

Remove debris, fallen leaves, and other items with a pool net.

Lower the water level when heavy rains are forecast to prevent overflowing.

Make sure your pump is not submerged in water.

Should you unplug your pool pump during a thunderstorm?

If you know a thunderstorm is brewing, we recommend turning off your pool pump and unplugging it before the storm hits.

Thunderstorms mean lightning, and lightning can cause surges. Damaged electrical equipment is a common result of lightning strikes. In most cases, storm-damaged equipment is completely written off and beyond repair.

You can prevent this by turning off your pool equipment at the breaker or better yet, by physically unplugging it from the outlet.

Not only can severe storms and wind cause electrical surges and power outages, they can blow away pool toys and lightweight pool furniture and knock over potted plants.

Need to keep your pool pump running after a rain or storm?

After it has rained or stormed, it is necessary to run your pool pump to remove dirt and debris in the water caused by heavy rainfall. Running your pool pump and filter for 24 hours after a storm gives you enough time to filter the water multiple times.

If you’ve had a flood, hurricane, or a particularly bad storm, we have an article that will help: How to Clean a Pool After a Storm or Flood

As mentioned above, heavy rains and thunderstorms can cause numerous unwanted problems with your pool. Check the pH, add sanitizer if necessary, and run the pool pump before returning to the water to ensure the water is safe for swimming.

To test your pool’s water, get a good quality pool test kit like this one.

What if your pool pump doesn’t work after a rain or storm?

Sometimes after a storm you find that your pool pump won’t turn on again. In this situation it is possible that the storm or rain damaged your pump. Although the most likely cause is a tripped circuit breaker.

To fix this, simply flip it back to the “ON” position.

If you’re still having trouble, we have a full article to help you fix your pump: pool pump not working after power outage or rain

Final Thoughts

Running your pool pump in light rain will not make much of a difference in how your pool pump performs. If your pool pump manufacturer has declared that your pump is rainproof, you can leave it on when it rains. However, it is highly recommended that you turn off and unplug your pool pump during a thunderstorm to avoid costly and irreversible damage to your pool equipment.

Installed in an inconspicuous spot in your backyard, the pool pump circulates chemicals through the water, filtering out impurities and cloudiness. With a quality pump, you’ll spend less time maintaining your pool and more time enjoying it.

The best pool pump has the power to efficiently clean your pool multiple times in 24 hours without constant attention. If you’re replacing your old model (the lifespan of a pool pump is 8 to 12 years) or buying a brand new pool, read on to learn about features to consider and some of the best options on the market.

Types of pool pumps

When shopping for an above or below ground pool pump, you have three choices: single speed, dual speed, and variable speed. Single speed models are the cheapest but also the least efficient, while dual speed variable speed models are more expensive up front but allow you to save on energy bills.

Single stage pumps

Single speed pool pumps only have one speed so the rate at which water is pumped to and from your pool is fixed. You cannot increase the speed to improve cleaning performance or decrease the speed to make the pump more energy efficient. Single stage pool pumps are designed to run for about 8 hours a day during which they should be able to circulate the entire volume of a pool at least once.

Two speed pumps

A two speed pump offers two different power settings, giving you two speed options for circulating water through your pool. This allows you to run at a higher speed when the pool is heavily used and needs more filtration, or at an efficient slower speed when it’s seeing little activity. Dual speed pumps are more expensive than single speed pumps, but offer 50 to 70 percent savings in energy costs.

Variable speed pumps

A variable speed pump gives you complete control over its circulation speed, allowing you to make micro-adjustments for optimal cleaning or energy efficiency. These pumps have programmable displays that allow you to vary the pump speed throughout the day.

Although these pumps are the most expensive of the three types, the ability to change speeds can save you 80 percent or more in energy costs over the long term. A variable speed pump can run 24 hours a day at a slower speed than a single speed pump and pump about twice the amount of water with the same energy consumption.

What to consider when choosing the best pool pump

When purchasing a new above or inground pool pump, it is important to consider several factors including pool size, material, performance and filter compatibility.

pool size

Pool owners must calculate the minimum flow rate of a pump in order to purchase the correct size pump for the pool volume. The flow rate uses metric gallons per minute to determine how many times per day the pump can filter the entire contents of the pool. This is called the number of turnovers. The pump should be large enough to turn the pool over at least once a day, although twice is better.

To determine how powerful a pump you need, you can either use an online pool pump calculator available on some manufacturer and retailer sites, or you can do the calculations yourself. Start by dividing the pool capacity by 24, which tells you how many gallons per hour a pump would need to circulate for a single turnover in a day.

For example, a pool with 10,000 gallons of water would need to pump about 1,250 gallons per hour to complete one circulation in an 8 hour period. To find rate per minute, divide that number by 60. For a 10,000 gallon pool, a pump would need to have a flow rate of about 21 gallons per minute to achieve turnover per 8 hour cycle.

Keep in mind that you might only want to run a single speed pump for about 8 hours a day to avoid exorbitant energy bills. So a single stage pump for a 10,000 gallon pool would need a flow rate of 42 gallons per minute, or about 2,500 gallons per hour if you wanted to circulate the water in your pool twice.

material

Given that above or below ground pool pumps have to run 8 hours or more every day to do their job, they need to be tough. Most pool pumps feature a durable stainless steel motor with built in fans that keep them at a cool temperature. The pump housing should be made of high quality plastic that can withstand the harsh chemicals found in chlorine and salt water pools.

tension and performance

Most manufacturers do not quote the performance of their pumps in gallons per minute (or hour) because the flow rate depends on factors other than the pump itself, such as: B. the size of the piping, the fittings, the pool filter and even the height of the pump in relation to the pool. All of these elements can create resistance that reduces the flow rate of the pump; this is called head resistance.

Most swimming pools have an average head resistance of around 40 feet. A 1 horsepower pool pump that can move 100 gallons per minute can only move about half that with a head resistance of 40 feet.

With that in mind, a 0.5 HP pump with a 40 ft pressure resistance is suitable for small pools up to 11,000 gallons. A 1 HP pump with the same resistance will work for pools up to 26,000 gallons, while a 1.5 HP pump will work for large pools up to 30,000 gallons. A massive 2 HP pump can clean pools up to 46,000 gallons.

If you have a system with a pump that is more than 40 feet from the pool or at an elevation more than a few feet below the pool, your pool will likely have greater heat resistance. In this case, it makes sense to hire a professional to help you calculate the pump size for your pool.

Pool pumps use either 115 volt or 230 volt power supplies, with most pumps under 2 hp able to use either. Most home appliances use a 115 volt power supply, while larger appliances such as electric ranges and tumble dryers require a 230 volt power supply.

Be sure to check the power requirements for the pump you intend to purchase. Replacing an old pump with 115 volt wiring for a pump with 230 volt power, or vice versa, is more complicated than installing a new pump that uses the same power source as the old one.

Plug-In vs. Hardwired

Some pool pumps will plug into standard 115 volt outlets, but most are hardwired into your home’s electrical system. Note that if you use a plug with the pool pump, the outlet you use must be GFCI protected to avoid electric shock. If it’s within 10 feet of the pool, it should also be a twist-lock plug to prevent it from being ripped out and exposing the outlet to potential splashes.

filter compatibility

There are three types of filters for an in-ground pool: sand, cartridge and DE (diatomaceous earth). Although most pumps will work with all types of filters, check compatibility before purchasing a pump. Each of the filters also has a maximum flow rate based on filter type and size. Never run a pump at a speed higher than the maximum flow rate of the filter or you could damage the filter.

energy efficiency

Pool pumps differ significantly in terms of energy efficiency. While a single speed pump is cheaper to buy, variable speed pumps ultimately pay for themselves in energy savings. A variable speed pump is programmable, so you can set it to run at a slower, more efficient speed during downtimes when the pool is not in use and cleaning is not required.

It might be tempting to buy a 1.5hp pump that goes well beyond the needs of your pool. However, you will pay more energy bills than with a smaller pump that is better suited to the size of your pool.

noise level

A noisy pump can be a nuisance when trying to relax by the pool. Swimming pool pumps run between 65 and 90 decibels, which is the difference between two people talking and a hair dryer. Most newer pumps are designed to operate quietly at the lower end of this range. Pumps with totally enclosed motors offer the quietest operation at decibel levels in the 40’s – about the same noise level as a refrigerator.

maintenance

Maintaining your pool pump is part of regular pool maintenance. As the pump draws in water, a basket filters out hair, lint, and other debris that the poolside skimmer misses. This filter needs regular cleaning, although some pumps include large baskets to extend the time between cleanings. You also need to clean the pump basket after vacuuming the pool.

The pump needs air circulation to prevent the motor from overheating, so never cover a pump or plant trees or shrubs near it. If the pump motor has air intakes, make sure they are free of dirt. When the pump is off during the off-season, cover the pump and motor to prevent dirt from collecting on them.

Our top picks

At the forefront are pool pumps from the most respected manufacturers in the residential pool industry, all ranked among the best on the market. The selection was made taking into account all the factors listed above.

Best Overall 1 Hayward W3SP2610X15 Super Pump Pool Pump Photo: amazon.com Check Current Price If you’re looking for a pool pump you can rely on, consider the quality construction and features of this Hayward model. Its 1.5HP motor is powerful enough to handle large pools and thanks to a design that allows air to flow through the motor, it runs in cooler temperatures, extending the life of the pump. A large 110 cubic inch strainer basket allows this pump to hold a significant amount of debris without sacrificing pumping performance. A clear cover lets you assess the basket without removing it, while hand knobs allow for easy cover removal without tools. This pump is available in a single-speed or more efficient two-speed model and works with both 115 and 230 volt power sources. Product Specifications Type: Single Speed

Single Speed ​​Plug-In: Yes

Yes PS: 1.5 Advantages Suitable for large pools

air flow and cooling temperature function; extended lifespan

110 cubic inch screen basket installed

clear cover; tool-free disassembly Disadvantages Should not be left out in the winter months

Some users report loud operating volumes

Best Budget 2 Pool Pump From Blue Torrent, 1HP Maxiforce In Ground Photo: walmart.com Check Latest Price Replacing an old pool pump in an inground pool doesn’t have to be a big investment. This Blue Torrent model features a powerful 1-horsepower motor at a price that is half the price of other in-ground pool pumps. A self-priming feature makes starting the pump easy and ensures it doesn’t run dry. The skimmer basket has a see-through lid, making it easy to monitor the amount of debris the pump is collecting. A simple twist-off cover allows for quick maintenance. Blue Torrent’s pump is conveniently available in 1.5″ and 2″ port sizes to accommodate a variety of systems. This pump uses a 115 volt power source and will work with a DE pump, sand filter pump, or cartridge filter. Product Specifications Type: Single Speed

Single Speed ​​Plug-In: Yes

Yes Horsepower: 1 Advantages Self-priming function

Skimmer basket with transparent lid

Twist-off cover for easy handling

Compatible with a DE pump, a sand filter pump and a cartridge filter. Cons May not be as durable as comparable options

Best Single Speed ​​3 Hayward W3SP2307X10 MaxFlo XL Pool Pump Photo: amazon.com Check Latest Price Pool Pump for treating in-ground pools up to 33,000 gallons. While this model doesn’t have the Energy Star rating of Hayward’s dual-speed models, it still features the brand’s hydraulic technology that improves efficiency. A clear lid on the filter basket allows the user to see when the basket needs to be emptied without having to open it. Inlet and outlet port sizes are 1.5 and 2 inches. This pump is powered by a 115 volt power source. Hayward has a reputation for durability, and this model shows it with the aluminum body of the motor and the high-quality, durable plastic that the pump is made of. This pump works with DE and sand filters. Product Specifications Type: Single Speed

Single Speed ​​Plug-In: Yes

Yes PS: 1 Benefits Moves up to 4,200 gallons of pool water per hour

Integrated hydraulic technology

The filter basket has a transparent top

Quality construction Cons No Energy Star rating

Best Dual Speed ​​4 XtremepowerUS 2HP In-Ground Pool Pump Photo: amazon.com Check Latest Price XtremepowerUS offers the efficiency of a multi-speed pump without the high purchase price of a variable speed model. This pump works at low or high speed, so you can save up to 70% compared to a single speed pump. It features a powerful 2 HP motor that can handle large pools with a flow rate of up to 5,280 gallons per hour. A ventilated motor keeps this pump running quietly. Easy-to-install electrical connectors make replacing your old appliance with this one a relatively easy do-it-yourself task. The pump also features an easy access strainer that can be removed and reinstalled with a simple quarter turn. A large debris basket means longer periods between pump cleanings, and the strainer’s lid is transparent so you can see how much debris has accumulated before opening it. It requires a 230 volt power supply and uses 2 inch fittings. Product Specifications Type: Dual Speed

Dual Speed ​​Plug-In: Yes

Yes PS: 2 Plus 2 speed settings

Moves over 5,280 gallons of pool water per hour

Ventilated engine

Easy to install cons expensive

Some users report bad printing

Best Variable Speed ​​5 Hayward W3SP2303VSP MaxFlo Variable Speed ​​Pool Pump Photo: amazon.com Check Latest Price Although you may pay significantly more upfront for this variable speed pool pump, you’ll find that the money is pumped back to you in the form of energy savings becomes. This Hayward model uses an efficient, magneto-encapsulated, fan-cooled motor. It features programmable digital controls that allow you to optimize speed settings for eight different times of the day, allowing you to conserve energy when the pool is not in use. The speeds range from 153 watts at 1,750 revolutions per minute (rpm) to 880 watts at a full speed of 3,450 rpm. It is also compatible with automation systems such as Hayward, Pentair and Zodiac that allow independent operation. Adjusted correctly, this variable speed pool pump can save you up to 80 percent on running costs. This pump is rated at 1.65 horsepower, making it powerful enough to handle large pools, while its hydraulic design allows for quieter operation than similarly sized pumps. It has 1.5″ and 2″ connections and requires a 230 volt power supply. Product Specifications Type: Variable speed

Variable speed plug-in: Yes

Yes PS: 1.65 Benefits Energy efficient model

Magnetically encapsulated, fan-cooled motor

Compatible with automation systems such as Hayward, Pentair and Zodiac

Quiet Operating volume Disadvantages Heavier than comparable options

Very expensive

Some users report manufacturing defects

Best for Saltwater 6 Pentair SuperFlo Variable Speed ​​Pool Pump Photo: amazon.com Check Current Price Saltwater pumps must be tough to withstand the corrosive nature of salt. This Pentair model features high-quality plastic construction that resists corrosion from salt or chlorine. It also includes a digital display that allows you to program different speeds throughout the day. You can increase the speed for better filtration when the pool is in use, and then program the pump to reduce speed during times when the pool is idle. This feature can save up to 80 percent in operating costs over standard single-speed pumps. This pump also includes an ultra-quiet motor, and since it operates on either 115 or 230 volt power, you don’t have to worry about rewiring for installation. Product Specifications Type: Single Speed

Single Speed ​​Plug-In: Yes

Yes PS: 1.5 Benefits Quality construction

Built-in digital display

Adjustable speeds

Energy Efficient Design Cons Some users report a short lifespan

Very expensive

Best Quiet Operation 7 Hayward W3SP3206VSP TriStar Pool Pump Photo: amazon.com Check Latest Price The price of this energy efficient model from Hayward may be high, but if you think about the big picture you might see its value. Hayward’s TriStar 1.85 HP Variable Speed ​​Pool Pump, when properly programmed, can save you up to 90 percent on energy costs compared to other pumps. Additionally, the Energy Star rating could qualify you for energy discounts. This variable speed pool pump has a programmable interface that allows you to set its variable speeds so it only runs when you need it. The closed motor also makes this pump a very quiet pump. Not only does this model run efficiently, but it also features a large skimmer basket for less frequent cleanings. Product Specifications Type: Variable speed

Variable speed plug-in: Yes

Yes HP: 1.85 Plus Enclosed Motor; very quiet operation

Energy Efficient Design; Energy Star certified

Programmable interface

Large skimmer basket Cons Very expensive

Our verdict

For a reliable pool pump that works with large pools, the Hayward Single Speed ​​Pool Pump has a 1.5 HP motor with airflow and cooling temperature function for longer life. Alternatively, for a budget-friendly choice that works in small to medium sized pools, the Blue Torrent single stage pool pump has a 1 HP motor and is self-priming.

How we picked the best pool pumps

We researched the most sought-after pumps for above and below ground pools and found that the best models are determined by type, power source, wattage, energy efficiency, and other distinctive features of the top brands.

To ensure our list includes a wide range of options that can meet different needs, we’ve included single-speed, dual-speed, and variable-speed pool pumps, all of which rely on wired electricity to pump water. In terms of horsepower, our top picks range from 1 to 2 horsepower motors capable of handling 26,000 to 46,000 gallon salt or chlorinated pools.

Because energy efficiency is important when choosing a pool pump, select options on our list are Energy Star qualified and use less energy than other options on the market. Many of our tips also include skimmer baskets with see-through lids to easily check when full, programmable speeds, quiet operating volumes, and motors that run cool or cold for longevity. Select options are also compatible with DE pumps, sand filter pumps and cartridge filters.

frequently asked Questions

If you’re alarmed by a gurgling sound from your pump or want to know how to prime a pump, read on for answers to these and other common pool pump questions.

Q: Why isn’t my pool pump filled with water?

You may need to prime the pump if it is not filled with water. Priming removes air from the pump and its suction line to allow water to flow through. Most pumps are self-priming; However, if your pump won’t fill with water, you will need to manually prime the pump to fill with water (see below). If there is no water in your pump, it may mean that the pool water level is too low and the pump is not priming water.

Q: How do you prime a pool pump?

Priming the pool pump is a relatively simple process:

Start by turning the diverter valve on the pool filter to recirculate it.

Remove any plugs in the return jets or skimmer.

Open the pump cover and fill the pump with water when dry. To do this you will need to replace the drain plugs.

Put the lid back on and turn on the pump. It will gurgle at first as it clears the air from the lines, but then it should run smoothly.

Q: Why is my pool pump gurgling?

If your pool pump is gurgling, air is likely getting into the pump, likely from the suction side. First check the water level in the pool. If the water level is low, the pump may be sucking in air instead of water. Also check the flapper on the pool skimmer to make sure it is not stuck and preventing water from entering the pump inlet. If both areas are checked, the pump cover likely has a crack or a dried out o-ring seal that you need to replace.

Q: What happens when air gets into a pool pump?

When air gets into a pool pump, it loses suction and prevents it from being able to draw water into the pump. Air is also expelled into the pool, causing bubbles and a gurgling sound.

Q: How long should you run a pool pump?

This depends on the type of pump you have. A single-speed pump should not run more than 8 hours a day to avoid high energy costs. With this in mind, it is important to purchase a pump that can circulate all of the water in your pool twice in that time. A dual or variable speed pump can run at lower speeds for extended periods of time.

Q: Can I replace my pool pump myself?

Replacing a pool pump can be a do-it-yourself job. Many pool pumps fit fairly easily into the hole created by the old pump. Be sure to check the warranty before replacing, however, as many major pump manufacturers will not honor their warranty unless the pump is installed by a certified professional.

“I’m building a new pool… Should I choose a sand filter or a cartridge filter?”

Once you’ve made the exciting decision to upgrade your lifestyle by adding a pool, spa, or swim spa, you must decide what type of filtration is best for you.

Filter and pump are the central system of the circulation of your pool. The primary purpose of the filter is to remove debris from your pool water so you can have a clean, sparkling pool to swim in all year round. Without them, your pool water can be full of dirt and bacteria, becoming cloudy and even making you uncomfortable. The pool pump circulates the water and forces it into the filter, where small dirt particles are removed by deep or surface filtration before the clean water flows either to the heater or back to the pool.

When it comes to choosing a filter, we recommend one of two types – a cartridge filter or a sand filter. The good news is that it doesn’t matter if your dream is a fiberglass pool or a concrete pool, both sand and cartridge filters will do the trick. So how do you choose which one is best for you? The most important considerations when choosing a filter are efficiency and performance, maintenance, cost and size.

Efficiency and performance:

If you are looking for a highly efficient solution that minimizes bacteria and debris floating around in your pool, the cartridge filter is your best solution.

The cartridge filter can capture finer debris than a sand filter, namely 10-20 microns versus 20-40 microns. A micron is short for “micron”, which means one-millionth of a meter, so we’re talking about very fine debris! For example, you can understand that both sand and cartridge filters catch dirt like beach sand and fine grit, but only the cartridge filter catches finer contaminants like talcum powder and mold spores.

Unlike sand filters, cartridge filters do not require backwashing, allowing for water savings of up to 92%, or thousands of liters. For comparison: That corresponds to about 60 loads of laundry! Another advantage of a cartridge filter that does not require backwashing or a multi-port valve is energy savings. Because the water flow is less restricted than with a sand filter, there is less stress on the pump, resulting in less energy consumption and less wear and tear on your pump.

Using glass media in a sand filter instead of sand media can help capture finer contaminants and generally uses less water in the backwash process, saving you time and money. For this reason, we always recommend the glass media option once you have decided on a sand filter. This can be discussed with your pool builder before construction begins.

maintenance

One of the main reasons people choose cartridge filters over sand filters is maintenance.

To service your cartridge filter, you simply need to remove the cartridge from the filter, usually with simple handles, and use a regular garden hose to flush away the dirt. The indicator on the filter lets you know when it’s time to clean it (most have a red mark). Depending on the pool size, at least 2-4 times a year are required. It’s also important to give the cartridges a hose after a big storm.

The sand filter, on the other hand, requires a little more effort in maintenance. It is ideal to backwash your sand filter about once a week after vacuuming to remove any residue left behind. Backwashing drains the dirty water from the sewer line and resets the sand bed. Sometimes additional water and chemicals need to be added to the pool to replace what has been lost.

To see instructions on how to clean your filter, please click here

Costs

The cheapest and most common type of filter is the sand filter. Generally these are cheaper to buy than newer technology cartridge filters, but you have to keep in mind that there are other costs associated with implementing a filter such as:

Installation: When your pool or spa installer installs your equipment, they will need to call in a sand filter plumber, which can add additional cost to the bill, while a cartridge filter is a bit more expensive to purchase, but a plumber may not be required.

Efficiency: As mentioned earlier, a cartridge filter can save you money on energy and water. You can achieve up to 92% water savings compared to a sand filter because no backwashing is required.

Replacement media: The cost of replacement sand or glass is cheaper than the cost of replacement cartridges. It is recommended to replace your cartridges every 1-3 years depending on your pool, but sand or glass only need to be replaced after 4-6 years. Once you have decided on your filter type, it is best to read the manufacturer’s instruction manual and warranty information regarding replacement lengths. Most of these can be easily found online before purchasing the product.

size

No matter what type of filter you choose, it’s critical that you size the right pump with the right filter. Each filter has a specific flow rate that needs to be professionally sized and paired with the right pump. Excessive flow can cause higher pressure on the filter and create excessive back pressure in the system. This can damage pumps and possibly even the plumbing. One of our knowledgeable pool builders can advise you on the correct filter size for your individual needs. In general, we recommend a cartridge filter for most pools, unless it is a large installation, in which case we recommend using a sand filter.

At Master Pools, our preferred filter manufacturer is local supplier Hayward Pool Products, based nearby in Melbourne’s south-east suburbs. Our select line of Hayward filters are all made in the USA and engineered to deliver premium, reliable performance with minimal maintenance. We currently offer the Hayward ProSeries Sand Filter and SwimClear Quad Cartridge Filter. Find out more about Hayward Filters here or you can contact us. Contact us to arrange a visit to our Master Pools Display Center in Cranbourne West so our friendly team can show you the range today.

In summary, it is best to understand your needs when making a decision between sand and cartridge filters. Is energy efficiency important to you? How much time are you willing to spend on maintenance? what is your budget What size is your pool? Once you’ve settled on the answers to these questions, discussing your options with your pool builder can help you make the best decision, allowing you to spend more time swimming in your clear, sparkling pool and less time worrying about it to have to do!

Having the right size pool filter is the first and most important step in maintaining clean and clear pool water. Pool filters remove dirt and debris, which allows chlorine, bromine, or other sanitizers to focus on destroying bacteria.

Check the size recommendations for the type of filter you choose and always go larger if you can afford it; A filter that is too small simply will not be effective. It’s always better to buy a larger filter than you need, especially if you’re hesitating between sizes.

There are three types of pool filters: sand, cartridge, and DE (which stands for diatomaceous earth). All three are capable of maintaining the water properly. There is no one best pool filter for all applications, but many owners prefer one over the other. This will help you decide which type of pool filter is best for you.

sand filter

Pros: Oldest and most common type of pool filter and certainly the easiest filter to use. Of all three types of filters, a sand filter is the cheapest pool filter you can buy for your swimming pool. Cleaning a sand filter is done by backwashing the filter, which is a simple process.

Cons: The sand filter filters the pool water down to the largest particle size, around 20 microns. Backwashing wastes water, in most cases a few thousand gallons per season. The sand in the filter should be changed every 5-7 years, which is not too difficult or expensive.

Sand filters are the oldest and most common type of pool filter. The filter canister is filled with a specific type of sand called #20 silica sand, which is available at most hardware stores or sand and gravel sites.

Water enters the tank and is pushed down through the sand, trapping dirt and debris. The water flows to the bottom of the tank where it enters the side walls and then is returned back to the pool.

In the sectional view you can see the side parts on the bottom of the tank. The water is filtered through these slotted tubes and then flows up through the center tube to be returned to the pool. They are also available with side mounted valves and top mounted inspection ports.

Side mount sand filters are NSF certified and can be used with a less restrictive slide valve, but are priced slightly higher than top mount sand filter models.

Sand filters are capable of filtering particles from about 20 to 40 microns in size, making them technically the least effective of the three pool filter types in terms of particle size removed. They are the easiest to service and require a backwash or cleaning to remove dirt from the filter when the pressure gauge reads 8-10 psi above the starting value.

Finally, backwashing can no longer remove the deposits. The sand particles become slick and unable to trap dirt, and the sand needs to be replaced. On average, this is required about every 5-7 years, but with too small sand filters it can be much earlier. The sand will likely need to be replaced if more frequent backwashing is required and it is difficult to maintain filter pressure at normal levels or to troubleshoot pool water problems. For details on changing the filter sand, see my blog post How to Change Pool Filter Sand.

Sand filters are available for every pool size and are generally the only type of filter you will find in large commercial applications.

cartridge filter

Advantages: No multi-way valve is required, so the piping is easier, and without multi-way valve, there is no backwash, which is environmentally friendly because it saves water and no DE powder is discharged. And since there is no multi-way valve, there are no multi-way valve repairs. Cartridges filter water better than sand, but less than DE.

Cons: With a single pleated filter inside, you will need to clean the filter cartridge quite often. With the large cluster filters, usually four filters, you still need to clean the filters, but only once or twice during the pool season. To clean the filter cartridge or cartridges, open the filter, take out the cartridges and spray with a hose, which takes 5-30 minutes.

Cartridge filters are so called because they contain a pleated spun polyester filter cartridge that looks similar to the air filter you find in your car. Water is forced through the cartridge pleats, capturing debris as small as 5 to 25 microns, a significant improvement over sand filters.

Cartridge filters require little maintenance. An oversized cartridge filter only needs cleaning about every six months or whenever the filter pressure is 8-10 psi above standard.

Each time a pool cartridge is cleaned some of its filtering ability is lost and eventually oils and debris build up to the point where they cannot be removed, requiring cartridges to be replaced typically every 3-5 years .

Replacement pool filter cartridges vary in price, but on average, new pool cartridges range in price from $30 to $100 per cartridge. Some filters may have multiple cartridges. For more information on cleaning and replacing pool cartridges, see my blog post Pool Filter Cartridges: When to Clean and When to Replace.

EN pool filter

Pros: The DE filter has the benefit of filtering the water down to the smallest particle size (2-3 microns) and keeping the water cleaner than a sand filter or cartridge filter. This can result in shorter pump run times and less sanitizer needed to keep the water clean and clear. DE is the superior form of pool filtration.

Cons: DE filters require the most maintenance. After backwashing your filter, you will need to add replacement DE powder through your skimmer to recoat the screens in your pool filter. With a DE filter, you will also need to disassemble the filter every six months to manually clean the filter screens. After all, the DE filter is the most expensive filter you can buy.

DE or Diatomaceous Earth filters remove particles down to 1-3 microns in size, a smaller particle size than visible to the naked eye, making them the most effective filter type. The filter contains either fingers or grids (grid arrangement shown) covered in a fine powder called diatomaceous earth. It is this powder that actually does most of the filtering. DE powder is generally sold separately from the filter itself and is added by pouring it through the skimmer.

Like a sand filter, a DE filter needs to be backwashed when its pressure gauge reads 8-10 psi above its normal value. Backwashing flushes most of the DE powder out of the filter. Your city may have specific DE disposal requirements; Avoid backwashing into streams or sanitary sewers.

Backwashing is easily accomplished by turning off the pump and turning the handle of the filter valve (multi-port valve shown in the image above) to the backwash position. The dirty DE powder is flushed out of a backflush hose (sold separately). Like side-mounted valve sand filters, DE filters can use a less restrictive slide valve to backwash the filter instead of the multi-port valve.

After backwashing, a new application of DE powder is added via the pool skimmer. The grids or fingers in a DE filter should also be cleaned annually and soaked in a cleaning solution such as our granular pool filter cleaner.

DE filters offer the highest water quality without a doubt, but that comes at a price; The filters themselves are generally the most expensive and also more time consuming to maintain.

FILTER EFFICIENCY:

All filters work a little better when they’re a little dirty, hence the range of potential micron capture capability in our pool filter comparison chart. A clean sand filter can only filter down to 40 microns, but when dirt builds up in the sand bed, it can effectively capture particles in the 20 micron range. All filters ensure clear water in a balanced and clear pool, but only those that can capture very small particles can quickly eliminate adverse water conditions. For example, for spring water vents or algal blooms, a DE filter can eliminate this in 1-2 days, but sand filters can take over a week and may need the help of clarifiers or other chemicals depending on the water flow rate and the age of the filter media. High flow rates, higher than the recommended flow rate, will result in poor filtration, pushing smaller particles right through the filter. Filter sand or filter cartridges lose up to half of their dirt-trapping power with increasing age and must be replaced.

FILTER MEDIA LIFESPAN:

Your pool filter tank can last 25 years or more, but the filter media, the material inside that does the filtration, will wear down over time, eventually resulting in cloudy water and short filter cycles (time between backwashing or cleaning). . Tired filter media require longer filtration time and more frequent cleaning or backwashing to keep filter pressure low. You’ll also need more sanitizer, clarifier, and other chemicals to help your ailing pool filter. The size of your filter also has a major impact on the lifespan of the filter media. If your filter is twice the size, the filter media can last twice as long: six years for cartridges, 10 years for sand and 15 years for DE mesh.

FILTER PURCHASE COSTS NEW:

Anyone can understand the logic of a great pool filter, but with a price range of $500 to $1,200, it’s difficult to double the cost for something that does pretty much the same job. DE filters cost the most, mainly because they have so many parts, but also remember that they are the best at filtering water. Cartridge filters are cheaper than DE filters, have fewer parts, and don’t need to purchase a separate backwash valve. Sand filters are the cheapest pool filters because they are the simplest type of pool filter, with fewer parts and a simpler design to manufacture. All filters should have the same installation cost; However, installing a cartridge filter is usually the least difficult. This is because without a filter valve, installation is less complicated and you don’t have to haul and pour hundreds of pounds of filter sand.

REPLACEMENT COSTS FOR FILTER MEDIA:

Sand: Pool filter sand is cheap if you can find it locally, usually around $10 per 50 pounds. Over time, the sand loses its sharp edges, resulting in a filter pond full of tiny ping-pong balls! Most in-ground pool filters use around 300 pounds of filter sand, but a larger (recommended) sand filter can hold 500 pounds, which is still a low total cost as long as you don’t pay for shipping! However, there are alternatives to filter sand that are inexpensive to ship, such as PolyBALLS, ZeoSand, and filter glass.

DE: DE filter grilles are the fabric-covered plastic frames. Over time, the seams will unravel or holes may appear in the fabric. If you’re crafty with an awl you can sew holes, but if they’re old or damaged from poor water chemistry a DE grid replacement is in order. Most DE filters have eight gratings, and complete DE grating kits can be purchased for $100 to $150, or individually for about $20 each.

Cartridge: Filter cartridges, like the air filter in your car, don’t last forever. The fibers in the fabric will loosen over time and may develop holes or thin spots. It is recommended to replace the pool filter cartridges after 12-15 cleanings or within a 3-5 year time frame. Large cartridge filters with four 32 inch high cartridges can go an entire season on some pools without cleaning and in some cases last six or seven years. Cartridge replacement costs vary, but can be as high as $125 each for in-ground pool filters

Changing filter cartridges is the easiest way to change filter media, just open the tank and swap carts. When changing the filter sand, the sand must be scooped out by hand and new sand poured in through the top access hole. DE filter mesh replacement involves opening the tank, removing and cleaning the meshes, followed by a complete disassembly and reassembly of the filter mesh assembly. Replacing filter sand or the DE filter meshes is more difficult and time consuming (1-2 hours) but certainly DIY friendly.

FILTER WATER CONSUMPTION:

If you’re in a dry area with restrictions on pool water use, your legislature may have already picked your next pool filter for you! Cartridge filters are preferred in drought areas as they are not backwashed; Instead, the cartridges are removed from the tank and hosed clean from top to bottom. This uses about 100 gallons compared to 500 gallons (or so) when backwashing a sand or DE filter. However, DE filters can be bumped every few weeks to reduce the need for frequent backwashing. A “bump” is a short backwash of only 10-15 seconds that mixes dirt and DE powder and allows you to continue filtering with delayed backwash. DE filters can also be installed with a separator tank to filter the backwash effluent and return it to the pool without a drop. However, sand filters require more frequent and longer backwash cycles and consume more waste water than other filter types.

FILTER REPAIR FREQUENCY:

A sand filter is the simplest filter design with fewer parts and fewer potential problems. However, it does have a backwash valve, either a multiport or a push-pull valve. In fact, a sand filter has more problems with the valve than with the tank or internals. DE filters have most of the internal (and external) filter parts, dozens of them, and also a backwash valve. And since a DE filter requires annual removal, cleaning, and inspection of the grille assembly, there’s more opportunity for damage or breakage (caused by you, sorry). Cartridge filters do not have backwash valves and have a simple design with few parts. Because of this, a cartridge pool filter is more likely to break down or require fewer repairs over time.

TIME CLEANING OR MAINTENANCE:

In the Ease of Use category, sand filters are the undisputed winners. They’re easy to use and understand and easy to backflush, and you almost never have to go into the tank for any reason. In contrast, DE filters require a fresh charge of DE powder after each backwash, and every six months they must be opened and thoroughly hosed down and inspected for missing parts or damage. Cartridge filters can be very low maintenance if they’re big enough, only requiring cleaning every three to four months, but if they’re small, you can open the filter every few weeks. Cleaning cartridges isn’t difficult, but it will take a while; Expect to spend at least 10 minutes per cartridge carefully hosing down from top to bottom. For best results with all filter types, use a pool filter cleaner annually to remove minerals and oily deposits.

Best pool filter type

Sand filters are the least effective, but also the cheapest to buy and use.

Cartridge filters are more effective but more expensive to purchase and use.

DE filters are the most effective, but the most expensive to buy and use.

To determine the best filter for your pool, you need to determine your opinion on water quality, price, and maintenance. Your best pool filter can be the largest filter you can afford, no matter the type of filter.

So remember: go big! A sand filter that is too big for your pool is a better purchase than a DE filter that is too small. Larger filters require less maintenance and the filter media lasts longer. And when you really need them to clean bad water conditions, larger pool filters do it faster and better than smaller ones. They often prevent poor water conditions in the first place.

If you would like us to help you choose the filter that will give you the best filter size for your buck, give us a call at 1-800-288-7946!

Jackie Wolski

InTheSwim Staff Blogger

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