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Thread: Muriatic Acid vs PH Down....

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    Join Date
    Jun 2013
    Newcastle, Oklahoma

    Muriatic Acid vs PH Down....

    is Ph down better to use than muriatic acid to lower Ph? MA is so caustic id rather not mess with it. luckily, so far, I have not had to use any MA is the highest my pH has ever been was 7.9, and it came down by itself in 2 days. Is there anything bad about using pH down instead of MA?
    Partially buried Doughboy Desert Spring 16 x 32, sport pool, with 7 ft deep middle, 20,000 gallons, Hayward Powerflo Matrix 1.5 HP 2 speed pump, 250 lb sandfilter, 2 Doughboy skimmers and 2 returns. 2 cascade fountains.
    Taylor K-2006 kit. Zodiac Barracuda Ranger suction side cleaner.
    TFPC method and is crystal clear every day thanks to TFP!!!

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    steveg_nh's Avatar
    Join Date
    Oct 2013
    Southern NH

    Re: Muriatic Acid vs PH Down....

    My SWG discourages using dry acid as it builds up on the plates. It's also the recommended cleaner (when diluted) for cells, some filter grids, etc.
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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

    Re: Muriatic Acid vs PH Down....

    Dry acid adds sulfates. At low levels sulfates are fine, but if you use large amounts of acid the sulfates build up and can damage plaster and SWG cell plates. Muriatic acid is much less expensive and doesn't add anything that could possibly cause a problem.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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