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Thread: Advice on getting chemistry on track

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    Advice on getting chemistry on track

    I have owned a pool now for 4 years and have recently decided maybe I should start taking better care of it
    I would like some advice on how to proceed because my chemistry is out of whack. Here are my test results:
    FC 15
    CC 0
    pH 7.5
    TA 200
    CH 650
    CYA 100

    I am also fighting a minor mustard algae problem. I was in the midst of shocking (hence the 15 FC), but realized it might be better to take care of the CYA first by draining some water.

    I read about how to lower the TA with acid and aerating.

    As you can see my CH is sky high and i need to drain water. Should I drain the entire pool or is a partial drain sufficient?

    Thanks for the help. This is a great forum.

    Keith
    Tucson, AZ
    20K gal IG Gunite with spa on same system
    Nautilus Stainless Steel 48 sqft DE filter
    1.5 hp Hayward MaxFlo pump

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: Advice on getting chemistry on track

    Welcome.

    If you could drain about 40% of your water, Your CYA would be manageable and your CH and ALk may improve as well. Test your fill water for a good indication of what to expect.

    Once your CYA is down to 60 or less, you'll be much more successful with your battle with algae.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Thanks for the reply! I will try this tomorrow.
    Tucson, AZ
    20K gal IG Gunite with spa on same system
    Nautilus Stainless Steel 48 sqft DE filter
    1.5 hp Hayward MaxFlo pump

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