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Thread: Should I add CYA?

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    Should I add CYA?

    I had to add CYA this year for the first time-tested at zero at opening and added to get to 30- This had been fine since we've had little sunshine and swimming up til now. I got my FC to 6 last night and today 4 people swam and it was sunny. I just checked my FC and it was 2. I'm thinking I may need to add CYA to get to around the 40-50 range. Last year had to drain and fill to get rid on CYA so I'm leary of adding too much-should I leave well enough alone? My pool is crystal clear and ph is 7.5 but my TA is hign (190).
    In ground 26,000 gal. 16x36 Avg depth-6'
    sand filter used 24/7
    auto cover

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    pwrstrk's Avatar
    Join Date
    Aug 2012
    Elverson Pa.

    Re: Should I add CYA?

    You could bump it up to 40 if you get alot of sun and see how that works. Just raise in small steps. PITA to get rid of.

    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Should I add CYA?

    +1 what pwrstrk said
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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