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Thread: Balancing TA

  1. Back To Top    #1

    Join Date
    Jul 2014

    Balancing TA

    I am new to TFP & this is my first post so if I am making mistakes please let me know.

    I am trying to prepare my SWG pool to use borates (Borax). Currently my PH is 8.0 (too high) and my TA is 110 ppm. My understanding is that I first need to get TA in the 70-80 ppm range. Is the best (and quickest) way to accomplish this to add acid to lower PH & TA, then aerate the water which raises PH but not TA? How many times might I have to add acid and aerate to bring my TA down to 70-80. Are there other/better ways to lower TA?

    I am currently taking water samples to my pool store but will order a TF-100 test kit.

    Other info:

    FC 3
    Salt 3000
    CH 380 (I was using Zappit 73 Calcium Hypochlorite but not more!)
    CYA 60
    Phosphates 500

    33,000 gallon IG pebble, SWG - Aqua Rite w/ Hayward T Cell 15, DE filter - Pentair FNSP 60, single speed pump, pool age 13 yr, spa, test kit TF100, Polaris 280

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Balancing TA

    Welcome to TFP!

    Yes, that is the correct way to lower TA. It will take several cycles and could easily take more than a week, or longer, depending on how much aeration you can arrange for.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3
    aussieta's Avatar
    Join Date
    Jan 2014
    Langwarrin, Victoria, Australia

    Re: Balancing TA

    ph tests dont usually read above 8 so it might be 8.1 or 9.1
    at a guess i would think 3-4 appliacations over a few weeks
    if your ph is closer to 10 a couple of big doses of acid may get you there in a week
    check pool math link at top of page it will tell you how much acid to add
    aim for 8 current 7.2 target
    with pump on high retest after an hour and repeat as required
    when you get your ph to 7.2 retest TA and see where you are
    SWG inground peanut shaped painted concrete pool
    50,000 litres 13,000 gallons
    Lincoln Salt Chlorinator, 25 gram cell Sand Filter
    Taylor K2006-C test kit, Taylor K-1766 salt test
    are you taking care of your pool or is the poolshop taking care of you

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