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Thread: Opening chemistry

  1. Back To Top    #1

    Join Date
    Nov 2014
    Location
    Albany, ny
    Posts
    5

    Opening chemistry

    Had pool opened last week, and didn't get tf-100 in until today. I have been running the pump a lot, initially too cold for swg, Then when temp came up, salt level was too low. The salt level was only 1800, so added salt to get up to 3100ppm and now swg running. I got kit in today, here are results.

    Ph 7.8
    FC 4
    CYA 30
    TA 140
    CH 325

    I plugged everything into pool math. I need to add some cya, but wasn't sure what to do about TA. It says to fix the TA i should lower the ph to 7.2 with acid, then aerate to raise the ph back up. I figure I should add some cya first, then repaet test in a week or so. At that time I can adjust the pH/TA. Is that ok, or should I proceed differently?
    ~15000 gallon, in-ground vinyl, swg

  2. Back To Top    #2

    Join Date
    Nov 2014
    Location
    Albany, ny
    Posts
    5

    Re: Opening chemistry

    Forgot to mention, the water is crystal clear.
    ~15000 gallon, in-ground vinyl, swg

  3. Back To Top    #3
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,941

    Re: Opening chemistry

    You are correct! Good job using the calculator. Adjust CYA to help protect your FC level and you can always adjust TA as needed per the Pool School - Lower Total Alkalinity. Congrats on owning your TF-100 and testing your own water.
    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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