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Thread: Added Borates and TA is Up

  1. Back To Top    #1

    Join Date
    Mar 2011
    Houston, Texas

    Added Borates and TA is Up

    I added Borates to my pool last month and I love the way my water looks. I made sure the water was balanced before I added them and I followed the instructions very closely on adding 20 Mule Borax and MA. From a week to 10 days after adding the Borax/MA my TA has consistently stayed around 100-130. And since that time I've added almost two gallons of MA over a 2-3 week period to lower the pH (my pool is still new and I'm still adding about a gallon or so of MA each week). I understand that Borates do not affect TA. Any reasons why my TA is staying on the high side? I'm trying to get it down to the 60 range. There has been very little rain here in Houston over the last couple of months and with evaporation I have to add about 1/2 inch of water every four or so days and my city water's TA is approximately 110. Can this be the cause?
    9,200 gal. Gunite Luna Quartz French Grey pool with spill over spa, two fountains on tanning ledge (rarely used)
    Pentair Whisperflo 2HP, Pentair CCP Cartridge 420 Sq. Ft., Polaris 280 with booster pump
    Pentair EasyTouch 4, RayPak LoNox 266k Natural Gas heater, Aqua Rite SWCG T Cell 9, Borates, TF-100 test kit

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

    Re: Added Borates and TA is Up

    Once you add borates it takes a lot more acid to change both the PH and the TA. Fill water will raise the TA, and it then takes more acid to get it down again.
    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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