What Size Pool Filter Do You Need For 10,000 Gallon Pool

What Size Puddle Filter Do I Demand?

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The size of the pool filter that you lot need will depend on the blazon of puddle you accept, the size of your puddle too equally the type of filter you are buying. Above ground pools take smaller plumbing systems for the most part than inground pool installations however the option and sizing process for a new filter looks pretty much the same for both with only ane notable exception. When people talk about a "cartridge filter" for a pool they are usually talking most a robust, expensive filter system that represents one of the best filter choices for whatever puddle.

With above ground pools, and particularly entry level to a higher place ground pools, a when someone is talking about a cartridge filter they are not pregnant a big pressure vessel tank with 200, 300 or 400 square feet of filter media inside, they are commonly talking near single paper filter element that is perchance 25 or 50 square feet of media. This is a point of confusion for some people since you can end upwardly reading that cartridge filters are the best filter selection you lot can become for a pool, while also reading almost how cartridge filters are useless and you need to upgrade to a sand filter. Permit'southward just go alee and clear up this defoliation once and for all.

Cartridge filters for above basis pools - While cartridge filters tin can be the all-time option for pool filtration systems the ones that typically come with higher up ground pools are ordinarily very small. The smaller a newspaper filter is the less debris it tin can handle before it begins to restrict flow from the pump. Also the smaller the surface area of the filter paper, the less overall menstruation the filter will be able to handle. Often above ground pool owners look to upgrade to a sand filter when in reality a sand filter is the lower end option of the two filters. Merely in this instance you are upgrading from a toy paper filter substantially, to an actual force per unit area vessel filter tank filled with silica sand. This is a good upgrade to brand for many entry level pool owners, only fifty-fifty better would exist to upgrade from a tiny, toy-like paper cartridge filter to a cartridge filter pressure vessel tank. In the end it all comes down to period rate potential and the amount of surface area of the filter media.

Why are pool cartridge filters so much better than sand filters? This comes down to flow rate potential and how fine the filter media is. When sized properly for a puddle organization, unlike the toy filters that come with cheap pools, a cartridge filter is going to remove textile up to three times finer from the h2o than a sand filter can. In add-on to beingness able to filter finer particulate, the cartridge filter also has a better, more efficient hydraulic design. The multiport valve on a sand filter, which controls the function and flow of water through the head and body of the filter, is a huge restriction to menses. This makes sand filters able to handle a lot less water flow than suitably sized cartridge filter units.

one) Maximum pattern menstruation charge per unit

2) Expected pump output menstruum charge per unit

3) Volume of the pool

4) Desired turnover rate

5) Hours per mean solar day yous run your pool pump

These five steps are needed for every pond pool owner in order to decide which size of filter y'all should be getting for your pool. This is not everything that you demand to know, just the beginning calculation that y'all need to practice for every type and size of puddle filter to commencement answering your initial question "What size pool filter do I need?" If you tin reply these questions and then y'all are almost all of the manner there to making an informed decision for your adjacent filter purchase.

What Size Sand Filter Exercise I Need?

If a sand filter is what you lot are wanting for your pool and then you will run across that they are sized by both concrete size, like a 22" filter or a 24" filter, but you will too see them designated by weight as in a 200 lb filter, or a 300 lb filter. All of this data is useful but non the outset thing you need to look at deciding what size of pool filter you lot need. Nosotros need to look at that list above to outset narrowing down on the filter selection.

If we presume the maximum design flow rate for a sand filter you are looking at is 50 GPM, which would represent a small to medium sized sand filter value, which would correspond to mayhap 150 to 250 lbs of sand (and probably a 1.five" multiport valve). This is a published effigy from the manufacturer for every filter, and you can even observe this value printed right on the label on your sand filter.

Adjacent we demand to estimate the menses value from the pump (or use a catamenia meter of you accept one. Every pump on the market has a published flow curve available for information technology. You lot might not be able to go the maximum value out of a flow curve, but you lot can definitely brand some educated guesses for menses charge per unit based on what you see. The flow curve will have flow rate on one axis, and the other axis will exist resistance to catamenia mensurate if anxiety of caput.

Head resistance - A puddle with near no resistance to flow would be 10 or xx feet of head. Medium caput would be 25 to 35 ft of head, and a pool with a lot going on like waterfalls, floor cleaners, solar heaters or lots of twists, turns and distance in the pipage runs might have 40, 50 or 60 human foot pounds of head resistance. You can use these numbers to estimate how much catamenia your verbal pump might put out for a depression, medium, or loftier head pool which you should be able to estimate for yourself. Having a flow meter takes out all of this guesswork for pump period, merely without one this is the best interpretation that you tin can exercise. Once you know your pump model and size in horsepower, y'all look upward the pump curve online and compare your estimated caput resistance to the flow rate that you lot can look your specific pump to deliver.

Nosotros were working with the instance of a sand filter that had a maximum designed catamenia rate of 50 GPM. If the pump nosotros had was a Hayward Super 2 pump, 1.5 horsepower, and we causeless a medium amount of head resistance at 30, then the approximated menstruum rate according to the data posted past Hayward is the pump will deliver a whopping 126 gallons per minute approximately. That is two and a half times the maximum menses rate that the filter we are looking at tin handle! The reason why is that the Super ii pump from Hayward is not just "twice as good" equally the Superpump. They are fabricated for different applications. If you needed to button against lx or fifty-fifty 80 ft pounds of resistance and then the Super 2 would work well where the Superpump would struggle to motion any water at all.

When we switch and await at the menstruation curve for the Hayward Superpump 1.5 horsepower instead we meet that at 30 ft lbs of head resistance the pump will likely deliver effectually 73 GPM. What a difference! This is why puddle owners who supplant their super pump with a Super 2 are about surely overdriving their filters. The Super 2 is an application specific pump for loftier head applications. All the same, equally you lot tin run across in this example, even the Superpump is too powerful at 73 GPM. The ane horsepower Superpump model notwithstanding would take 65 GPM expected output, and then dropping down to the 3/4 horsepower model the expected menstruation rate is around 52 GPM. Equally you can see when pool owners store by horsepower they are almost certainly overdriving their filters, especially if they have a sand filter.

We now take a sand filter that is rated for 50 GPM and a iii/4 horsepower superpump which will move about 52 GPM on a organisation with 30 feet of caput. Next nosotros need to look at the volume of the pool and the expected turnover rate. You should plow over the h2o in your pool iii times every 24 hours every bit the manufacture standard to achieve 95% of all of the water in your pool being filtered at to the lowest degree one time. Assuming a xx,000 gallon pool, which is about a 16 x 32' pool with a 3.5' shallow cease and vi' deep stop. At 20,000 gallons in book we demand to aim for 60,000 gallons daily for filtration totals. So next, how many hours per day do you run your puddle pump?

24 hours @ 60,000 gallons = 41.6 GPM

12 hours @ lx,000 gallons = 83.33 GPM

viii hours @ 60,000 gallons = 125 GPM

What the heck these numbers don't add together upwardly at all! If y'all only ran your pump half of the day you would need 83.33 GPM in order to filter enough water. That is more than the filter can handle and more than the iii/4 superpump we chose can put out. Even worse is viii hours of running fourth dimension a day needing 125 GPM to attain the total filtration volume. So what is the disconnect here? The disconnect is that largely puddle systems are non built efficiently, pool filtration equipment is non sized properly, and puddle owners do not sympathize filtration volume amounts or puddle turnover properly. Actually a breakup in every step of the procedure. No wonder pool owners have and so much trouble getting an reply to such equally "uncomplicated" question as what size pool filter do I demand?

What we have learned in the above instance is that if the minimum turnover rate of iii per day is going to be met, 60,000 gallons per 24-hour interval, the pump is going to take to run most 24/7 to get in that location. At least one expert thing to say here is that at least the pump no longer doubles the maximum menstruation the filter can handle, just equally the owner of this pool you might not want to have to run your pump virtually 24 hours per day. This is noisy and expensive for electrical consumption. This is why many pool owners simply ignore the recommended filtration volumes and instead undershoot these values significantly. It is not a skillful idea, but it is the answer to why these numbers are so different than what y'all have been doing to your puddle, or how other people run their filtration system.

Sizing a pool sand filter - When picking a sand filter for your pool it is of import to sympathize that your maximum menstruum rate will be an issue. Unless you are also buying your pump at present and can size it to the filter, so you must choice a filter than tin work with the pump that you have now. It would be a fault to assume the terminal person who picked your pump and filter had any understanding of this filter sizing process you are learning about at present. Y'all should try to go the largest (highest) maximum design menses rate you tin can find in your sand filter, and this will normally be from filters with a ii" multiport valve instead of the i.5" multiport valve filters. As a loose guide, think along the lines of 150 pounds of sand filter media per x,000 gallons of h2o. A 20,000 gallon pool would demand 300 pounds of sand...but call up that maximum designed flow charge per unit and turnover rate for your pool book are both more important than how many pounds of sand you take.

Testing for head pressure - If y'all want to estimate equally petty every bit possible with your organization then you do not need to gauge your resistance to flow. If yous put a vacuum gauge into the suction side of your pump and a pressure gauge into the pressure side of your pump then you perform the following calculation to larn meet a snapshot of your full dynamic head resistance to flow. With the pump running multiply the PSI on the pressure gauge past ii.31 and so perform a similar calculation on the suction side of the pump. The vacuum gauge reads in inches of mercury. With the pump still running y'all would multiply your vacuum reading by 1.thirteen. Add both the suction side and pressure side numbers together, and the result is your resistance to flow in anxiety of caput.

What Size Cartridge Filter Practise I Demand?

Just equally with the sand filter example above when y'all are sizing a cartridge filter for your puddle you lot will need to wait at the same data. You need to look first at the maximum designed flow rate for the filter you are considering. Unlike sand filters yet yous will discover that cartridge filters have vastly higher maximum designed catamenia rates. This is primarily because cartridge filters do not have a multiport valve which ways they have a lot less brake to menses. Even pocket-sized cartridge filter have equally much or more catamenia potential than even large puddle sand filters.

In the sand filter example the pump had to be downsized to avert sending far as well much water through the filter. Since cartridge filters have such a high designed period rate, our instance filter will be able to handle 120 GPM even though information technology is merely a medium sized filter at best. Next we have the same 20,000 gallon puddle, which needs the same threescore,000 gallons of flow through the filtration system every day. In this example we do not demand to downsize the pump for the sake of protecting the filter, so the original 1.5 HP superpump at 73 GPM would piece of work fine. Even the Super 2 high head pump from the offset example at 126 GPM could probably even match up with this medium sized cartridge filter. This would give you a lot more filter options than with the sand filter which is going to need to run almost 24 hours per day. With the one.5 HP superpump hither are the viii, 12 and 24 hour turnover values:

24 hours @ 73 GPM = 105,120 Gallons

12 hours @ 73 GPM = 52,560 Gallons

8 hours @ 73 GPM = 35,040 Gallons

Wow, do yous run into how much of a departure the filter makes when choosing betwixt sand and cartridge? With the sand filter we had to run a much smaller pump 24 hours per twenty-four hour period virtually to achieve out 3x turnover goal of 60,000 gallons each day. With the one.5 HP superpump instead of the 3/4 HP, and with a cartridge filter that can handle higher flow, you can now encounter your full daily turnover a trivial over 12 hours. That is an comeback even so this is merely scratching the surface of how to make a filtration system more functional, and especially more economical, which you can larn more about in this commodity nearly how much electricity a pool pump uses. What if you had a huge pool volume and you needed more filtering than the Superpump tin can provide? What about the i.v HP Super 2 that we were looking at that was rated for 126 GPM? If you were to run that with the 120 GPM cartridge filter:

24 hours @ 126 GPM = 181,440 Gallons

12 hours @ 126 GPM = 90,720 Gallons

8 hours @ 126 GPM = 60,480 Gallons

Holy bananas look at how much h2o volume that is! On a 24 hour schedule that is enough h2o to turnover a 60,000 gallon pool three times. That is a 30 10 fifty' pool with an average depthjust over 5' deep. It is incredible to call up that you lot could actually turn over a pool that big with something as small as a 150 st cartridge filter like this new model from Hayward, the C150S which has a 120 GPM maximum designed period rate. All the same you lot would non want to filter a 30 x 50' pool with a single 150 sf cartridge chemical element even if it can handle an impressively high maximum flow rate. You demand to consider the effective filration expanse when sizing a puddle cartridge filter. This will determine how long you volition be able to go in betwixt needing to open and clean your filter elements.

Sizing a puddle cartridge filter - Since both a small cartridge filter and a large cartridge filter both have impressively high maximum flow rates and so technically you could use either one on a given pool size. The only factor that would change between a smaller filter versus a larger filter is just the corporeality of time y'all become betwixt cleanings. When your filter pressure rises 7 to 10 PSI then information technology is time to clean your filter elements. If you have a 300 sf cartridge filter instead of a 150 sf cartridge filter and so yous will be able to go twice as long in between filter cleanings. When sized appropriately for the pool a cartridge filter should be able to go months in between needing to be cleaned, assuming the water was clean when you started the clock.

With all of these calculations and variables I am sure y'all are starting to run across how dynamic the question really is, and asking what size filter you demand is going to get you lot a lot of data but not necessarily a lot of answers. For the established commercial standards for swimming pool filtration and filter sizing we would use multipliers called FMR - Filter Media Rate. These established standards are applied to the filter media to determine how much (in square footage) yous need for your pool filtration system. In order to calculate the bodily surface area of filter media you would apply the equation FA (filter area) = FR (period rate) / FMR (filter media charge per unit).

You tin calculate the expanse for your specific filter, just this data is already provided on the manufacturers label, probably right adjacent to where the maximum design flow charge per unit was printed. If your filter provides a maximum design commercial filtration rate, that is the FA = FR / FMR calculation mentioned in a higher place. For residential pools instead of ultra-bourgeois FMR calculations information technology is accepted indusrty practice to use 150 square anxiety of expanse for cartridge filters per 10,000 gallons of h2o. A xx,000 gallon puddle would use a 300 sf cartridge filter. Remember that cartridge filters are very capable, both small and large, and the only appreciable number you are changing is how long you will be able to go in between filter cleanings.

Too long, didn't read (TLDR) - In society to know what size filter you need for your pool you need to know your pool book then make up one's mind if you will follow the industry standard of three turnover of your pool volume daily. Decide on the total volume you want to filter in 24 hours (or the number of hours you want to run your pump daily) and take your filtration total in gallons and then divide by the hours your pump runs, and carve up that number ny 60 to requite you your GPM (gallons per infinitesimal) needed to exist handled past your filter. Cheque the maximum designed catamenia rate for your filter and make sure your menses charge per unit will not exceed this value. Check your pump catamenia bend and estimate (or calculate) your full dynamic head resistance (measured in anxiety of head) to run into how much flow your pump will output on your system and make sure this matches upwards with your maximum pattern menstruation charge per unit on the filter. For sand filters sizing is usually around 150 pounds of sand per ten,000 gallons of water where for cartridge filters it is commonly effectually 150 square feet per 10,000 gallons of water.

There is another way that is much easier, much more simple, removes a lot of these hard limitations and actually ends up filtering your pool improve for way less coin and that is to get a variable speed puddle pump. It volition exist police July 2021 that all pools must use a variable speed pump (or similar efficiency threshold) and this volition let y'all to set flow rates to whatever maximum or minimum value that you demand for your puddle or your specific pool filter...assuming you have a menstruum meter and know how much water your system is moving.

Match a variable speed pump with a suitably sized cartridge filter (150sf / 10,000 gallons) and you take a monster combination of free energy efficiency as well as huge potential maximum menstruum volumes. If yous want to filter your water efficiently, effectively and for as little money (and confusing calculations) as possible, that is the best you are going to exercise. A variable speed pump, a large cartridge filter and a flow meter then you tin can dial in your 3x turnover based on a 24 hour running schedule. It does not get any better than that when information technology comes to pool filtration.

A note on DE filters - I practice not endorse DE filters (diatomaceous earth) as pool grade DE is not condom like food course DE is for humans. Pool grade DE is toxic, is an airborne irritant, can crusade silicosis since DE is non purged from the body and repeated doses tin can accumulate, which has been shown to cause nonmalignant respiratory diseases equally well as lung cancer. Yes DE filters are even more effective than cartridge filters at removing detect debris from the h2o, and yep DE filters too typically have loftier maximum design flow rates like to cartridge filters, however I do non use or endorse DE filters for pools when cartridge filters are a perfectly acceptable and effective option without the constant utilise and exposure to things toxic to humans.

Want to run across the maximum design menstruum rates for every brand, make, model and size of puddle sand filters and cartridge filters? Puddle Filter Catamenia Rates This buyers guide that I put together lists the maximum pattern menstruum rates and filtration surface area for every filter y'all should be looking at with the exception of the new Hayward C150S that I mentioned.

Pool filter reviews

More info on pool filter sizing

How much ability does a pool pump use?

How much can you lot save with a variable speed pump?

Period rates for common pool piping sizes

Variable speed puddle pump reviews

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What Size Pool Filter Do You Need For 10,000 Gallon Pool,

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