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Thread: Alkalinity drops too low on new water fill

  1. Back To Top    #1

    Join Date
    May 2016
    Naperville Illinois

    Alkalinity drops too low on new water fill

    When I'm adjusting the ph to balance the water in the tub the alkalinity drops to below 50 before I can get the ph to stop drifting. I know that alkalinity is a ph booster how do I keep the alkalinity up around 50 while I still have to use ph down to get the ph to stop drifting.

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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Alkalinity drops too low on new water fill

    Please post a full set of test results: PH, TA, CH, CYA

    How high does the PH get? With low TA, it should not get that high.
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  3. Back To Top    #3
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Alkalinity drops too low on new water fill

    +1 to a full set of test results so we can see the whole picture.

    Have you added borates? You can raise TA with baking soda. More about pool chems here, Pool School - Recommended Pool Chemicals

    Review the pH, TA and borates discussion here, How do I use Chlorine in my Spa (or pool)?
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