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Thread: CYA at level zero

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    CYA at level zero

    The last two times I've tested the CYA - it has been zero. I did think of something just now though - I might need to order new chemicals for the season?
    Do I need to add CYA to the pool?

    I am using the k-2006 Complete (FAS-DPD chlorine) from Taylor.

    Water is slightly cloudy, but a lot of pollen had fallen to the pool bottom and the vacuum stirred it up a little. Ph is 7.4, Chlorine is 4.

    It's an above ground, round 33ft and I live in North Alabama.
    North Alabama - halfway between Huntsville and Birmingham.
    33 AG; 25000 gallons; installed in 2012
    Pump: Hayward Power Flow LX SP-151521BC; HP 1.5; SPL 70 GPM
    Filter: Hayward Dream Line Highrate Sand Filter Model S23OXSC

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: CYA at level zero

    For an outdoor pool you certainly want some CYA in the water.

    The CYA test reagent in the K-2006 kit doesn't normally go bad very easily. Taylor does recommend that you replace the reagents every year, but it is common to get two years out of them without problems as long as they are stored at a reasonable temperature and not left out in the sun.
    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

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