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Thread: TA and pH questions

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    TA and pH questions

    We have a 20 X 40 X 32 inground, indoor, vinyl pool. I have the hardest time keeping the pH up. I consistently have to put about 4 lbs of soda ash in each day and it makes the pool cloudy. We use an automatic feeder for the chlorine and acid which are liquid feeders. We have an unusually large bather load through swim lessons. I am looking to improve the clarity of the water. Any suggestions? I was thinking of putting in a new filter and pump and adding a UV filter.

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

    Re: TA and pH questions

    Make sure the acid feed system is properly adjusted. You don't want the acid feed system constantly adding acid while you are manually adding soda ash.

    Are there any other chemicals that get added to the pool regularly?

    Adding soda ash causing clouding suggests that some of your other levels are out of balance. Could you post a complete set of water test results?

    It would be nice if you setup your signature line. We don't get very many indoor pools, so without a reminder that yours is indoors you will tend to get outdoor pool advice, which is often different.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    elwood58's Avatar
    Join Date
    May 2012
    Sun City West Arizona (2nd Home)

    Re: TA and pH questions

    I would stop any addition of Acid until you get your pH stable. Soda Ash and Acid are working against each other.
    14100 Gal IG MiniPebble, Pentair Intellichlor IC-40 SWG, Sand Filter, Pop Up Cleaning, Intelliflo VS Pump, Aquacal Heatpump/Chiller, 1/4 Acre Desert Landscaped, Lots of Deck. Built in 1984, updated in 2012 and 2014
    "If you don't measure it, you can't manage it!"

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