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Thread: Need help adding Boric Acid

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    LittleTagAlong's Avatar
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    Need help adding Boric Acid

    Even after leaving pool unattended for 8 days, my levels are great. Now I want to add Borates in the form of powdered Boric Acid. Pool Calculator tells me how much but not how. Do I need to lower my TA a bit more? It's steady at 80.
    This morning: CYA 80, pH 7.6, FC 9 (dropping from SLAM) CC 0, TA 80, CH 175
    And I see how to do it with Borax and MA, but not Boric Acid. Please advise.
    Thanks
    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

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    Mod Squad pooldv's Avatar
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    Re: Need help adding Boric Acid

    Boric acid is equal to Borax + MA. In one convenient dose. If your PH is stable then you can add it now. If your PH still rises then lower TA to 70 and see if PH is stable, then 60 if needed.

    More here, Borates - Why and How
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    LittleTagAlong's Avatar
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    Re: Need help adding Boric Acid

    Kool. I'll check again in the AM. Can you turn on SWG while Boric Acid is dissolving? I think I will keep Hayward Critter running at time i put acid in. He is doing awesome cleaning bottom.

    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

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    JoyfulNoise's Avatar
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    Re: Need help adding Boric Acid

    Are you using Pool Math or poolcalculator.com?

    Please be careful with poolcalculator and only use Pool Math as linked through from TFP. They look the same but I don't think the calculation from poolcalculator.com are correct.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    LittleTagAlong's Avatar
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    Re: Need help adding Boric Acid

    Both. Backing my bets. Lol

    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

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    LittleTagAlong's Avatar
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    Re: Need help adding Boric Acid

    I only use poolcalculator because I paid for it. Tonight's readings: pH 7.6 FC 6.5 (SWG goes on tomorrow) CC 0.0, TA 70(endpoint 80), CH 175. Didnt test salt or CYA.
    So can SWG run while I add Boric Acid??

    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

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    LittleTagAlong's Avatar
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    Re: Need help adding Boric Acid

    One more newbie question, should I backwash filter beforehand?

    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

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    Mod Squad pooldv's Avatar
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    Re: Need help adding Boric Acid

    Fine to run swg and cleaner. No need to clean the filter. I'm pretty sure that Pool calculator is not updated anymore. PoolMath in TFP is kept current.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Need help adding Boric Acid

    The boric acid dissolves pretty quickly. I just dumped mine in the pool and brushed. It wont get stuck in the filter for days like CYA can.
    16K Gal Plaster | Compupool SWG | Intelliflow VF | TF-100

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    LittleTagAlong's Avatar
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    Re: Need help adding Boric Acid

    Thanks. Y'all have no idea how much I appreciate all the help I've found on this forum. And, fyi, anytime I need to add, I do use Pool Math🙃

    AG, Intex 18' x48" Easy Set pool( =/- 5455 gal)
    Intex SF80110 sand filter & SWG ECO 7110, Hayward AquaCritter
    Well water, location is north Texas, usually up from late May to Oct.
    Taylor TF-100 test kit, TDS Digital Salinity meter and Taylor salt kit

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