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Thread: (Q) Muriatic acid alternative

  1. #1
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    (Q) Muriatic acid alternative

    For as common as it seems, I am having hard time finding acid muriatic at my local supermarket or anywhere where I live. It may be weeks before they will stock it up again.
    Is there a common product that I can use as an alternative ?
    I just found out that, in my BBB method, using common bleach (12%) is causing my PH to constantly rise, thus I need to use a fair amount of acid on almost a daily basis to keep my PH in check.
    P_
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    10,000 glns bean shaped inground plaster pool - Pentair SD60 sand filter - Pentair 3/4 HP pump

  2. #2
    Senior Member
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    Re: (Q) Muriatic acid alternative

    For less of an effect on pH, keep your Total Alkalinity (TA) lower. You might need to raise your pH target and/or CH to compensate for the saturation index. It could also be that the chlorinating liquid that you are using is high in pH. Good quality 12.5% chlorinating liquid has a pH of 12.5; more typical ones have a pH of 12.8; ones with a pH of 13 or higher would have a noticeable rise in pH that even a lower TA won't help prevent.

    As for acid, you can use dry acid (sodium bisulfate), but check hardware stores as they usually have Muriatic Acid -- it's used for cleaning outdoor pavement, among other things.
    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
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  3. #3
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    Re: (Q) Muriatic acid alternative

    Quote Originally Posted by chem geek
    As for acid, you can use dry acid (sodium bisulfate), but check hardware stores as they usually have Muriatic Acid -- it's used for cleaning outdoor pavement, among other things.
    I've found this at Home Depot, tucked way back in the garden section. You may have to clear off a layer of dust but they may have it.
    24' AG, 2 hp 2sp brand new (Aug 09) cartridge filter & pump.
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  4. #4
    Senior Member
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    Re: (Q) Muriatic acid alternative

    Adding Borax to your pool may help buffer pH changes also.... although there will be an immediate pH rise when you first add it.
    IG 24k plaster with overflow spa. Goldline PS-8 SWG. Tristar 0.75 HP filter pump, Polaris 280 with SELF-PRIMING pump, large cartridge filter, 400k BTU NG LAARS, DelOzone 1gm CD ozonator, Life Saver pool fence, ORP managed.

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