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Thread: CYA and Alkalinity Relation

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    Join Date
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    CYA and Alkalinity Relation

    Browsing the Web I found this interesting tech paper about the cyanuric acid and alkalinity measurement. I would like your opinion and advice about.
    http://www.aquaticspecialtyservices.com ... letin2.pdf

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    Re: CYA and Alkalinity Relation

    Here is a thread that already discusses this, cyanuric-acid-and-alkalinity-t18199.html.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
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    JasonLion's Avatar
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    Re: CYA and Alkalinity Relation

    The short answer is: unless you are calculating a calcium saturation index, the CYA - TA relationship can be completely ignored. If you are calculating a saturation index, which most people have no reason to do, we recommend using the Pool Calculator which automatically makes the needed adjustments for you.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: CYA and Alkalinity Relation

    Couple of weeks ago I received the TF-100 and is really fantastic! I want some advice about when to shock. I had been checking the FC and CC using the FAS-DPD method. During the last weeks the CC reading is 0. The question: Is necessary to shock having the CC in 0, or will be good idea to shock, said, monthly?

    Plaster: 13,000 gal., Waterfall, 1.5HP pump, DE Filter, FC~5, CC~0, pH=7.5, CH=270, CYA=38, Alk=80

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    Mod Squad jblizzle's Avatar
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    Re: CYA and Alkalinity Relation

    You only SLAM the pool when there is a reason, not on some schedule ... and those reasons are:
    1. Visible algae / cloudy water
    2. High CC
    3. Abnormally high FC loss
    Jason, TFP Moderator
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