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Thread: New pool, is it too early to add borates?

  1. Back To Top    #1

    Join Date
    Mar 2007
    Murrieta, CA

    New pool, is it too early to add borates?

    Okay, the pool is coming up on 4 months old. White Quartz plaster.

    Everything's been fine so far except for the constantly rising pH. I've been adding about 8-12 oz of muriatic acid per day. I think I'm ready to add borates to the pool to try and maintain the pH at a more constant level.

    Is it too early to do so? Are there any good reasons to wait?

    CYA is about 60 ppm
    TA is about 80-100 ppm
    FC is between 5-7 ppm depending on bather load
    SWG is running at 10% duty cycle for about 18 hours/day.
    ~13500 gallon gunite pool, Pentair Intelliflo 4x160, Pentair 520 SF cartridge filter, Pentair MasterTemp 400 NG heater
    Pentair Easytouch with IC40 SWCG, Hayward Navigator on dedicated suction line

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD
    Since it has already been four months you should be fine. Keep in mind that most of the PH increase you have been seeing is from the plaster curing and that will start to taper off around now, if it hasn't already. The borates will still help in any case.
    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

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