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Thread: Where is my CYA?

  1. Back To Top    #1

    Join Date
    Feb 2011
    Central Texas

    Where is my CYA?

    I had 45 CYAin April. I just tested and have 25 now. We did get some rain and I had to dump around nine inches of water during the rains, but I would not guess that would take away almost half the CYA. Does the test go bad? I suppose I could by more and try it again. Otherwise looks like I will be throwing in tabs to get the CYA back.
    IG 23K Gal, Quad DE 80, PebbleSheen, Intelliflo VS+SVRS, MT 400 NG, Stenner Pump

  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Where is my CYA?

    CYA degrades a bit on it's own. If I remember, perhaps 10% each month. That coupled with your drain makes your loss very plausible.

    CYA purchased alone, rather than tabs, is usually a better way to add it to your pool.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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