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Thread: Is 325 sf ft cartridge filter large enough?

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    Is 325 sf ft cartridge filter large enough?

    Hi all,

    I posted a couple of weeks ago asking for help selecting a cartridge filter. I have a 22,000 gal IG pool and the concensus was 425 sq foot filter. I informed the builder of my choice and he assured me that it would be at least 425 sq ft. Well, now that everything was installed, I went to update my profile with the actuals and he only installed a 325 sq ft filter .

    I haven't made the final payment yet, so I am not concerned with the difference in price or that I didn't get what I paid for since I will make sure that we square up. My question is if I should live with the 325 sq ft filter or should I push him to exchange it for the larger 425 sq ft filter?

    Thanks in advance.
    Mike


    22,000 gal IG vinyl pool
    AutoPilot Pool Pilot Digital SC-48
    Hayward 1 hp Super Pump 74 gpm
    Hayward C3030 Cartridge Filter 325 sq ft
    Rheem 6350ti Heat Pump 113k BTU
    TF-100 Test Kit

  2. Back To Top    #2

    Join Date
    May 2007
    Location
    South Central NJ
    Posts
    3,192

    Re: Is 325 sf ft cartridge filter large enough?

    What's in the contract?

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  3. Back To Top    #3

    Re: Is 325 sf ft cartridge filter large enough?

    There is a sand filter in the contract and I requested a cartridge filter at 425 sq ft as an upgrade. We have not yet settled on the up charge and that is why I am not concerned about the cost at this point.

    I am confident that I can get him to swap out for a larger unit if it was really necessary - if I can get away with the 325 sq ft filter I would likely keep the one that is there now.
    Mike


    22,000 gal IG vinyl pool
    AutoPilot Pool Pilot Digital SC-48
    Hayward 1 hp Super Pump 74 gpm
    Hayward C3030 Cartridge Filter 325 sq ft
    Rheem 6350ti Heat Pump 113k BTU
    TF-100 Test Kit

  4. Back To Top    #4

    Re: Is 325 sf ft cartridge filter large enough?

    325 square feet is OK to use up to 122 gpm on a commercial pool, so that should give you good performance.

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    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: Is 325 sf ft cartridge filter large enough?

    Just as JW said, the 325 will be fine. It should also come out to about the same cost as the sand filter.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  6. Back To Top    #6

    Re: Is 325 sf ft cartridge filter large enough?

    Thanks everyone!
    Mike


    22,000 gal IG vinyl pool
    AutoPilot Pool Pilot Digital SC-48
    Hayward 1 hp Super Pump 74 gpm
    Hayward C3030 Cartridge Filter 325 sq ft
    Rheem 6350ti Heat Pump 113k BTU
    TF-100 Test Kit

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