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Thread: Is my TA too low

  1. Back To Top    #1

    Join Date
    Mar 2010
    Spring, TX

    Is my TA too low

    I have been doing my testing and I noticed that my pH levels have been staying right around 7.5 for the past two weeks. I have not made any other changes and prior to this my pH level would move from 7.2-7.8 within 3-4 days. I noticed when my pH level was moving my TA level was around 90-110. I tested today after a few weeks and it is at 60. So I am guessing it may be better for me to run a little lower TA level to balance out my pH so that it does not move so much. I know at one point in time last season my sweet spot for TA was around 90, so I guess that is why I am concerned.

    This is not a new plaster pool either as I have been in the house for 3 years and no plaster jobs have been done.

    We have had a few hard rain showers in the past few weeks but it does not appear to be moving.

    Here is a full set of test results


    I am also only losing around 1-2 (high end) FC each day, but with the cold weather lately it has been around .5-1 per day.

    So is this something I should even worry about or just be happy about it. I am going with the later.
    13,000 Plaster IG Pool approx
    Hayward C5030 Cart Filter
    Emerson 1081 EB653 1.0 HP 1.40 S.F. 3450 RPM
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  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Is my TA too low

    I am going with the later
    Me, too. Stable pH is hard to obtain but your lower pH seems to have helped a lot.

    I would leave it alone but test it a bit more frequently and add some baking soda if it goes below 60. bring it up to maybe 80 ppm if it does and continue to test. 60-80 may be perfect for your particular pool.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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  3. Back To Top    #3
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: Is my TA too low

    If your pool is happy at 60-------you should be too! TA is a recommended range as a starting point. DISCLAIMER: Your mileage may vary!
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
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