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Thread: Boric acid and bleach

  1. Back To Top    #1

    Join Date
    May 2014

    Boric acid and bleach

    I was adding boric acid slowly to pool (couple scoops every other day). I threw in my last needed scoop right after I added my dosage of bleach. I searched high and low and didn't see anyone post any warnings about adding them at the same time. Is this an ok move or should I have waited an hour? Also it was impossible to keep those pea sized clumps of boric acid from resting on the floor of my vinyl pool. I brushed as best as possible but it was getting pretty dark out, some May have rested on the bottom all night. Are there any known issues with boric acid clumps hurting the liner? All in all I can't believe I waited this long to add borates to my pool!
    14k gallon, vinyl in ground, 1 hp pentaire pump, pentaire sand filter, taylor k2006 kit,hayward shark vac cleaner, pool blaster cg vacuum

  2. Back To Top    #2
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Murrieta, CA

    Re: Boric acid and bleach

    It's not a problem. You can relax and enjoy the pool.
    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

  3. Back To Top    #3

    Join Date
    Mar 2007
    San Rafael, CA USA

    Re: Boric acid and bleach

    We just generally give the advice about spacing chemical dosing apart, but chlorine and boric acid aren't items that would be of serious concern adding them back-to-back.

    As for boric acid sitting on the liner, it is slightly acidic, but less so than Cyanuric Acid and much less than Trichlor. If you had one of those dark plaster pools whose dye is sensitive, then that would be more of a concern. Also, with a vinyl liner, it's not just fading, but acid weakens the material. Again, for boric acid the risk is low, but do brush the area when it's light again if you see any still undissolved at the bottom (or just brush the bottom anyway just to get water circulating down there).
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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