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Thread: High Levels of Cyanuric Acid; Twice in 1.5 Years

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    Join Date
    May 2014
    Wesley Chapel, FL

    High Levels of Cyanuric Acid; Twice in 1.5 Years

    For the second time in 1.5 years, my pool company is telling me I have to drain my pool, due to high levels of cyanuric acid. Our pool does not get a lot of use, so I am really wondering if the pool service company that does the chemicals is doing something wrong, or doing something that is cheaper for them, but costing me in the long run.

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: High Levels of Cyanuric Acid; Twice in 1.5 Years

    Very little doubt they are using pucks to chlorinate your pool. That most always results in CYA being too high.

    Only solution is to chlorinate using bleach but a service company won't do that as it has to be done more than weekly.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    TFP Guide

    AimeeH's Avatar
    Join Date
    Apr 2012
    Columbia SC

    Re: High Levels of Cyanuric Acid; Twice in 1.5 Years

    This would all depend on how they are maintaining your pool chlorine. I would suspect chlorine tabs and it that case it could be very likely your CYA is too high as those would constantly be adding CYA.
    18*36*23 true "L" vinyl IG 29,000 gallons. SWG. TF-100 test kit.

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    Join Date
    Jul 2011

    High Levels of Cyanuric Acid; Twice in 1.5 Years

    I would believe it. I drained mine approx 1.5 years ago and got the cya around 60 adding it via the sock method. But I was ignorant and continued to use pucks thus raising the cya again. Ff to today that I want to add a swg I realized that I es close or above 200 and drained approximately 80% to get it within range.
    I would find out how they are treating your chlorine pucks liquid or what. There is a local company that converts your pool to a swg as it is easier for them and the pool to maintain. I would shop around if you have one like that

    13k IG pebble pool w/waterfall, 1hp whisperflow pump, pentair ccp320 cartridge filter
    Circupool SI45+ swg
    TF100 +speed stir Taylor 1766 salt test

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