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Thread: TA is 90ppm. Too high to add borax?

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    TA is 90ppm. Too high to add borax?

    I know the suggested TA is 50-70ppm but would it hurt if I added the borax with a TA of 90ppm? Any drawbacks?
    15,500 gal, inground gunite pool with 7 ft spa, 2 speed pump 2hp/.33hp, 3/4 hp booster pump, Intermatic P1353 timer, AutoPilot SC-48, Sand filter with ZeoBest, Heater, that I never use . . .

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: TA is 90ppm. Too high to add borax?

    It depends on what you are trying to do. If your primary goal is to reduce PH increases from CO2 outgassing, then you should lower the TA more before adding borax. If you are adding borax for some other reason then it is probably fine to go ahead and add borax right now. You can still lower the TA even after adding borax, it is just a bit easier to do it now.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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