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Thread: Borate and low TA

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    jorivesud's Avatar
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    Borate and low TA

    Thinking of going with Borate in my pool.

    Parameters are the following:
    FC: 4
    CC: 0
    pH: 7.5
    CH: 275
    TA: 40
    CYA: 40
    Salt: 3400
    SWG is not on yet, water too cold

    Should I be concerned about my low TA before I add Boric Acid?
    Or is it OK, to have it at 40?

    My Ph kept climbing last year with a TA that was at 60 (got lowered from melted snow).
    I also had CH of 450 last year (again lowered from melted snow).

    I want to go Borate mainly to keep pH at check, and get the optimized sparkling benefit.
    12x20 vinyl liner + fiberglass steps. (6800 Gallons)
    SWCG - Hayward Salt&Swim 3C
    Hayward XStream Cartridge Filter (200 SQ.FT)
    Hayward TriStar VSP
    Raypak heat pump, Taylor K-2006 test kit.

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    Mod Squad pooldv's Avatar
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    Re: Borate and low TA

    I think I would raise it to 50 and then let the borate fly. I like some borates.
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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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    JoyfulNoise's Avatar
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    Re: Borate and low TA

    Borates have limited pH buffering capacity for falling pH (increasing acidity) so you need the carbonate portion of your total alkalinity to deal with that. Usually a minimum of 50ppm TA (mostly carbonate alkalinity) and an additional 50ppm borates makes the water pH very stable. I would not drop below 50ppm TA.
    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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    jorivesud's Avatar
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    Re: Borate and low TA

    Ok, I will raise TA to 50-60 before adding borate.
    12x20 vinyl liner + fiberglass steps. (6800 Gallons)
    SWCG - Hayward Salt&Swim 3C
    Hayward XStream Cartridge Filter (200 SQ.FT)
    Hayward TriStar VSP
    Raypak heat pump, Taylor K-2006 test kit.

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    jorivesud's Avatar
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    Ottawa, Canada
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    Re: Borate and low TA

    Adjusted TA, but also saw my CYA go up again (was added in a sock in front of return 4 days ago)
    Here are my full results now:
    FC: 5
    CC: 0
    pH: 7.4
    CH: 275
    TA: 60
    CYA: 60
    Salt: 3400
    Water Temp: 60
    Will turn on SWG today, now that water has reached 60.

    I seem to be all set for Borate. Or should I wait a little longer?
    12x20 vinyl liner + fiberglass steps. (6800 Gallons)
    SWCG - Hayward Salt&Swim 3C
    Hayward XStream Cartridge Filter (200 SQ.FT)
    Hayward TriStar VSP
    Raypak heat pump, Taylor K-2006 test kit.

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    Mod Squad pooldv's Avatar
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    Re: Borate and low TA

    Go!
    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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