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Thread: Perfect size filter for my pool?

  1. Back To Top    #1

    Join Date
    Jul 2012
    San Diego, CA

    Perfect size filter for my pool?

    I am looking to buy a used filter to replace my currently leaking pentair 150. I found a used pentair 100, but wanted advice on the size.

    How do you figure out the correct sq. ft. filter size for your pool?

    NEW POOL : 9 x 18, 48" deep - Bestway brand, 1 HP Intex 3200 Pump/Sand Filter Combo, Wanda the Whale, Hayward through wall skimmer (still in box)
    OLD POOL 5,100 Gallons, 9 x 19 used Splash a Round, Intex SWG, 1.5 HP Hayward Power Flow LX pump, Pentair Clean and Clear 150 sq. ft. filter, hard plumbed, Wanda the Whale,

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Perfect size filter for my pool?

    There is a table from Mark that we use as a guideline.

    For your 5100 gallon pool, the minimum recommendations would be:
    76 sqft cartridge
    13" diameter sand
    14 sqft DE

    But bigger is usually better especially for cartridges. Likely the 100 should be fine, although you will likely be moving more water through it than would be spec'ed for a commercial application (which is only 38 GPM) with your 1.5 HP pump. Although residential spec is 100 GPM and you will certainly be under that.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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