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Thread: Need help: Ph and TA high before closing

  1. Back To Top    #1

    Need help: Ph and TA high before closing

    I am preparing pool for closing and I shocked the pool but my TA and PH are high and can't get to low. Need help with it.

    FC 18 (It was 23 after shock and reduced by 5ppm in 24hrs, I used BBB method.)
    CC 0
    TA 115
    PH 8.2
    CH 110

    I added Dry Acid 3lbs by mixing it in water to the pool. Ph came down to 7.8 after 1hour, but went back to 8.2 by end of the day.

    What should I do?

    1. Should I be reducing the Ph to 7.2 - 7.4 and TA to 80 -90 before closing?
    2. Or does it matter if Ph his high before closing?
    3. Will it affect my new Vinyl?

    Please advise.
    33,000 gallon (20x40), Sand, IG, Vinyl

  2. Back To Top    #2

    Join Date
    May 2007
    South Central NJ

    Re: Need help: Ph and TA high before closing

    Try a different test kit. Bring the pH down.

    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  3. Back To Top    #3
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Need help: Ph and TA high before closing

    AT that hhigh an FC your pH test will read artificially high. You need to bring the FC down to about 10 and test it again. If it's still high you should bring the pH down to 7.2 - 7.4 then raise the FC back up.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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