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Thread: Pool calculator vs. chlorine/CYA chart

  1. Back To Top    #1


    Join Date
    Jul 2011
    Location
    Stockton, CA
    Posts
    63

    Pool calculator vs. chlorine/CYA chart

    I am, hopefully, near the end of a tiresome, expensive shock cycle due to high CYA, unmeasurable chlorine, etc., etc. I find the pool calculator to be very accurate regarding chlorine dosing/measured FC result.

    But, I notice a significant difference between the recommended FC target and shock levels using the pool calculator and the chlorine/CYA chart, based on my data input.

    Any thoughts? Thanks.
    22,500 gal, in-ground, plaster, Intelliflo VS 3050 pump, Sta-Rite 400 sq. ft. cartridge filter, solar panels on roof

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Pool calculator vs. chlorine/CYA chart

    Either number, or anything in between will do. The Pool Calculator aims for something close to the lowest level that will work, while the Pool School numbers aim for results that are quicker.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3


    Join Date
    Jul 2011
    Location
    Stockton, CA
    Posts
    63

    Re: Pool calculator vs. chlorine/CYA chart

    Quote Originally Posted by JasonLion
    Either number, or anything in between will do. The Pool Calculator aims for something close to the lowest level that will work, while the Pool School numbers aim for results that are quicker.
    OK, thanks.
    22,500 gal, in-ground, plaster, Intelliflo VS 3050 pump, Sta-Rite 400 sq. ft. cartridge filter, solar panels on roof

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