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Thread: is this pool safe to swim in ?

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    is this pool safe to swim in ?

    If CYA levels are over 100,

    high chlorine...

    Is it safe to swim in My Pool ?

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    Join Date
    Feb 2008
    Location
    Denton, TX
    Posts
    5,061

    Re: is this pool safe to swim in ?

    If your CYA is exactly 100, the FC must be at least 7 in order to be safe to swim in. Any FC below 7 in a pool with a CYA of 100 is not properly sanitized. If the CYA is higher than 100, then your FC should be higher than 7. There really isn't a good way to test for CYA about 100 though. Your best bet is to change out water and lower the CYA. This makes management a little bit easier.

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    bobodaclown's Avatar
    Join Date
    Apr 2011
    Location
    Murrieta, CA
    Posts
    2,360

    Re: is this pool safe to swim in ?

    To get you in a ball park when it's over 100 is dilude 50% Pool water and 50% tap water. Then test. Double the reading.
    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

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    Re: is this pool safe to swim in ?

    Last year I had a CYA of 95 and targeted 11ppm, if I was losing 5ppm/day (use and sun) I would take it up to 16 ppm. Never had any problems. This year my CYA is down to 60 from the partial drain/refill during closing/opening.
    Aaron
    [ Vogue Vectra 24' AG | Hard plumb: Hayward Power-Flo Matrix 1HP 2-speed, 27" sand filter & Pentair MiniMax 100 NG | Taylor K-2006 | Central IL ]
    Powered by: TFP, PoolMath & TFTestkits

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