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Thread: Lowering TA ?

  1. Back To Top    #1

    Lowering TA ?

    Just opened my brand new inground pool/spa. It is 13890gal
    My fill water has the following:
    FAC 0
    TAC 0
    CYA 0
    TA 180
    pH 8.0
    Acid 2
    TDS 200
    Pho 0

    I'm told the first thing to do is lower TA to between 80-140 using Muriatic Acid
    I was told to add 22 fluid oz of MA but may need to add up to an additional 8qt 11oz
    Was told not to add more than 24 fluid oz at any one time. Why is this. If I'm going to need to add nearly 2gallons how long do I have to wait between each addition of 24 oz

    Thank you

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

    Re: Lowering TA ?

    The correct way to lower your TA is written up in this article at Pool School. The crucial thing is to keep your PH at 7.0 or higher, which limits how much muriatic acid you can add at one time.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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