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Thread: High Alkalinity

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    Join Date
    May 2010
    Location
    Louisiana
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    127

    High Alkalinity

    Not sure if I am doing something wrong but I just installed and filled my pool 3 days ago with City water and having troubles getting alkalinity down. Currently 170 and I have PH at 7.0. Everything else is good.
    27' Radiant Metric, 17,100 gallons
    Pentair Dynamo 1.5hp 220v
    Circupool RJ45, Sand Filter, Borates
    Dolphin DX6 Robotic cleaner
    TF 100 Kit

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: High Alkalinity

    If you provide some sort of aeration, the PH will go up, and you will be able to add more acid to continue lowering TA. More generally, lowering TA takes a while, even with lots of aeration.
    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

  3. Back To Top    #3

    Join Date
    May 2010
    Location
    Louisiana
    Posts
    127

    Re: High Alkalinity

    Thanks Jason. So I need to raise PH up again and then add more acid? I thought by keeping PH down it would lower Alk.
    27' Radiant Metric, 17,100 gallons
    Pentair Dynamo 1.5hp 220v
    Circupool RJ45, Sand Filter, Borates
    Dolphin DX6 Robotic cleaner
    TF 100 Kit

  4. Back To Top    #4
    Richard320's Avatar
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    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: High Alkalinity

    Acid lowers pH and TA. Aeration raise pH up so you can repeat it.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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