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Thread: TA level ok?

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    Join Date
    Jun 2013
    Location
    Middlesex County/VA
    Posts
    50

    TA level ok?

    Ok I am on day 5 of my new pool. I was raising my TA and PH from previous days readings. In making a last adjustment to my PH from 7.2 to 7.5 my TA rose to 110 from 90. Is this an ok level? I have seen 70 to 90 and I have seen 100 to 150 as being safe levels. Also for an above ground vinyl pool is it important to test anything other then FC,CC, PH and TA? I plan to test CYA on Sunday Monday as I added stabilizer on this past Sunday.
    Pool Size: 24' Lomart Whispering Wind II 13000 gallons
    Pool Type: Aboveground
    Pump:Hayward 1 1/2 HP Power Flo Matrix 2 Speed
    Filter: Hayward S230T 250lb Sand Filter

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    Mod Squad zea3's Avatar
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    Jul 2009
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    Houston, Texas
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    Re: TA level ok?

    You should only adjust TA if you are having a hard time keeping a consistent pH level. Whatever TA keeps your pH happy is good. If your pH has rapid rise or drop then you will adjust your TA to stabilize the pH.

    Test the CH at the beginning of the season. You want a minimum of 50ppm of CH. If you have high CH ( over 350 ppm) you will need to keep a closer watch on it to prevent scale. Then you would want to keep the TA low to help keep the pH low to prevent scale.
    TFP Moderator
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Join Date
    Jun 2013
    Location
    Middlesex County/VA
    Posts
    50

    Re: TA level ok?

    So if PH holds at 7.5 to 7.6 TA is safe at 110 to 120? I tested CH at that came in at 50
    Pool Size: 24' Lomart Whispering Wind II 13000 gallons
    Pool Type: Aboveground
    Pump:Hayward 1 1/2 HP Power Flo Matrix 2 Speed
    Filter: Hayward S230T 250lb Sand Filter

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: TA level ok?

    Yes, if the PH is steady the TA is fine. If PH is constantly going up, you want to lower TA.
    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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