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Thread: Pool calculator

  1. Back To Top    #1

    Join Date
    Jan 2016

    Pool calculator

    Ph is 7.9 and need to bring it down ... I got MA from home depot and it is 20% (13 baume) but no option for that on pool calculator. Is there a way to add it or what do you guys do?
    36,000 Gallon, 40x20 IG, Vinyl, Hayward S- 200 Sand Filter, 300,000 MasterTemp heater, 1hp Superpump, Polaris 9550 sport, TF100 test kit

  2. Back To Top    #2
    TFP Guide
    Mr Bruce's Avatar
    Join Date
    Mar 2014
    Greenville, SC

    Re: Pool calculator

    Use the 15.7 dropdown choice and put a slightly higher pH as the target than what you are aiming for. It's always better to take half steps than over shoot.
    35K gallon Krystle Krete (Plaster) - Sand Filter - TF100
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

  3. Back To Top    #3

    Join Date
    May 2016
    Riverside, CA

    Re: Pool calculator

    Go back to Pool Math. Scroll to the bottom past the table and there is an "Effects of adding chemicals tool." It's ~15% on that tool but that should get you close. PH adjustments are approximate anyway.
    Appx. 39,000 gal., in-ground plaster. 48 SqFt Pentair DE grid filter, 1 HP Pentair single speed pump, Circupool RJ-60+ SWG (seen here). Currently using Cellulose instead of DE. Hayward XL suction sweep. TF-100.

  4. Back To Top    #4

    Join Date
    Mar 2015

    Re: Pool calculator

    Use 15.7% MA then multiply what it tells you to add by 0.785
    16k AG Vinyl Sand Filter

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