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Thread: Question about cya level

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    Join Date
    Jul 2013
    Location
    Texarkana,Arkansas
    Posts
    34

    Question about cya level

    I just tested two times and it was 70 ,it is partly cloudy today will this make a huge difference in the results the pool gets a lot of sun I was shooting for a cya of 40 pool math says I should drain 43% of my water. Do these goals seem about right. Thanks for all your help
    28'x52" with7' deep end AG 2hp pump 3.1 sq ft sand filter 25500 gal,TF-100 test kit

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
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    30,077

    Re: Question about cya level

    I think in your climate I would shoot for about 50 ppm CYA. 40 is not bad, either.

    Why don't you do a 25% drain/refill and see where that lands you? I'll bet your close.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    jtaves85mcss's Avatar
    Join Date
    May 2012
    Location
    Cincinnati, OH
    Posts
    188

    Re: Question about cya level

    What test kit are you using?

    Regardless I would wait on any draining until I could do the test with the proper sun light. Light and method can have a great impact on the test results.

    Review recommended test instructions in post #8 of this thread http://www.troublefreepool.com/threa...Kit-Directions
    Pool: IG 22k- 16x32 clipped corners- vinyl liner, w/ a great board. Built in 3/99, new to me 2/2011.
    Equip: Hayward 3600 DE filter, Hayward CL-200 Chlorinator (empty since 7/5/2013).
    K-2006 Test kit with Speedstir
    Located in Cincinnati, OH. TFP lurker since 9/2011, BBB interested since 5/2012 and converted 7/2013.

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    Join Date
    Jul 2013
    Location
    Texarkana,Arkansas
    Posts
    34

    Re: Question about cya level

    I'm using TF-100
    28'x52" with7' deep end AG 2hp pump 3.1 sq ft sand filter 25500 gal,TF-100 test kit

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