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Thread: question about adding boric acid

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    Join Date
    Feb 2012
    Greenville Indiana

    question about adding boric acid

    I am going to ad boric acid to my pool to improve the feel, my ph is 7.4, the ta is 250, and the ch is 250. Other than the ph being dropped to 7.4 from 8.1 due to about 8" of rain over the last 3 weeks, that is the readings from my tap water. After reading other posts I am now confused! In the other chem forum I was advised not to worry about ta as it will likely drop as I add acid to keep the ph under controll. I am planning on adding boric acid and not borax so that I don't increase the ta any further, will the boric acid make reducing the ph more difficult? Should I try to reduce the ta before adding the boric acid? Whar are good sources for boric acid? I know that the pool store products are over priced, and no local chemical suppliers stock boric acid, it would cost about $100 including shipping for 50lb.

    TIA Eric
    27' x 54" Cameo by Backyard Leisure (Wilbar) 17,200 gallon
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    bobodaclown's Avatar
    Join Date
    Apr 2011
    Murrieta, CA

    Re: question about adding boric acid

    This post may help: boric-acid-the-easy-way-t38793.html?hilit=boric%20acid

    I did the borax route initially, but when I needed to top redo I used boric acid.
    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

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

    Re: question about adding boric acid

    You pretty much need to order boric acid mail order, or pay dramatically inflated prices to get name brand products that contain boric acid from a pool store.

    It is easier to reduce TA before you add boric acid. However, you can still reduce TA afterwards. The procedure is the same either way, you just get less feedback about your progress when lowering TA after adding boric acid.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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