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Thread: Balanced Pool and Pool Math

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    Balanced Pool and Pool Math

    If i have a SWG, vinyl pool how much should i be concerned with the CSI index?

    I'm in the middle of adding borates to my pool, but expect when i'm done my readings to be somewhere around:

    FC 4
    CYA 50
    PH 7.5-7.6
    CH 100-110
    Salt 2900
    Borates ~50
    TA 80-90

    According to these I'm outside the -6 to .6 and my pool is not balanced. Is this because mainly my CH is low and does not matter for vinyl pools anyway?

    since i don't really need any CH. If that is the case should there not be some sort of calc that takes it into consideration my pool is vinyl and the numbers to be 'Balanced' should be different?
    Located in Ottawa, Ontario Canada
    23K Gal, AG, Cart filter, 1.5hp 2speed hay PowerFlo Matrix, Install Sum'13, Aquatrol SWG, Solarbear panels, kreepy Krauly E-Z Vac, TF-100
    Artesian ~500gal Grand Gayman Island Spa

  2. Back To Top    #2
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Columbia, SC

    Re: Balanced Pool and Pool Math

    As long as you keep all your readings within our recommended levels you canalmost ignore the CSI. With your vinyl liner the only worry you really have is CH getting way out of line high and scaling. The corrosive part only deals with plaster pools.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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