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Thread: My Numbers

  1. Back To Top    #1
    derek533's Avatar
    Join Date
    Mar 2017
    Location
    Edmond, OK
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    15

    My Numbers

    After about a 50% pool drain and refill due to high CYA, here are my numbers:

    FC: 0
    CC: 0
    PH: 7.4
    TA: 220
    CH: 480
    CYA: 80% (as best as I can tell, it's cloudy outside)

    The CH and CYA both came down as the CH was at about 880 and the CYA was well over 100% (I'm guessing about in the 140 range).

    What do you all recommend besides getting some chlorine in there.

    Water temperature about 59 degrees and I'm on well water. Thanks!
    24,000 Gallon In-Ground Plaster
    Pentair DE 48sf Filter
    Hayward Superpump
    Hayward Shark Robot

  2. Back To Top    #2
    Mod Squad Texas Splash's Avatar
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    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
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    17,343

    Re: My Numbers

    Derek, for now, definitely add some bleach ASAP. I'd increase to about an FC of 8 for today. Tomorrow, sunshine permitting, check the CYA again. It must be a bright sunny day with the sun at your back while you look down the viewing tube. If the CYA is over 80, be prepared to exchange a little more water. When it gets that high, it's very difficult to manage. Hopefully your pool is on a strict diet of regular bleach and nothing else - no tabs/pucks, or bags of shock.

    Your TA is a bit elevated, but we can address that later once we know your FC & CYA are balanced together properly. That's priority #1. Enjoy your day.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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  3. Back To Top    #3
    derek533's Avatar
    Join Date
    Mar 2017
    Location
    Edmond, OK
    Posts
    15

    Re: My Numbers

    Thanks a heap!
    24,000 Gallon In-Ground Plaster
    Pentair DE 48sf Filter
    Hayward Superpump
    Hayward Shark Robot

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