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Bigger is better. The bigger it is the less often it has to be cleaned, and the more effective it will clean. Three key points of water quality "filtration, circulation and sanatization.

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16y ago
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Wiki User

13y ago

easy, you just do the area.20*2+40*2.

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Anonymous

Lvl 1
3y ago

what size filter do I need for a 20 x 40 in ground pool

5' on the deep end and 3' on the shallow end

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Q: How do you calculate the size of swimming pool filter needed?
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Related questions

How much water in swimming pool?

The dimensions of the pool are needed to calculate this Well actually depends how big and how much u put in to it!


What kind of in-ground swimming pool maintenance is needed over winter in cold climates?

To winterize your inground swimming pool, first backwash the filter, and then disconnect the pump. Purchase winterizing chemicals for the pool water, and be sure to use a pool cover.


How much water in a swimming pool?

The dimensions of the pool are needed to calculate this Well actually depends how big and how much u put in to it!


Where can you order swimming pool filters online?

Yes you can order your required swimming pool filter via the internet. You can go to the website of your pool manufactuer to order the proper filter.


Why can a swimming pool filter be dangerous?

A swimming pool filter can be dangerous because it operates under pressure and can explode.A fastener secures the top of the filter but in some cases the fastener can fail and allow the filter to top to blow off.


Which valve lowers swimming pool pressure?

You can not measure the pressure in a swimming pool. If you mean the pressure on the filter tank gage then you may have to backwash the filter. Talk to your local pool store for instructions as how to maintain a swimming pool and the equipment. Get some education on swimming pool maint. before you get into some real trouble. A pool is not too forgiving for someone without a basic knowledge of pools.


Which swimming pool filter has the highest rating?

The best or highest rated swimming pool filter depends upon the use of the pool because a high use pool needs a higher quality filter. The most popular and therefore rated highest in the popularity sense are the Pleatco cartridges.


Do you need a filter for a swimming pool?

Yes. That is how the dirt is removed.


How often should I clean my pool?

The cleaning schedules varies from filter to filter, but a general guideline on any swimming pool filter is to take a reading when the filter is clean, then clean the pool filter when the pressure rises about 10 psi.


How can you calculate the total area of swimming pool?

By measuring the length and breadth of the pool we can measure its area.


How do i calculate the volume of a round swimming pool?

A round swimming pool is a right circular cylinder, so you can use the formula pi times the radius squared times the height to calculate the volume.


Your swimming pool in filter position but is still aloowing water to backwash from pool?

You may have to check the seals in the multyport on top of the sand filter.