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Thread: TA too low??

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    Pysiek's Avatar
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    TA too low??

    I test my spa water using the TF100 kit. I add 2 drops of first liquid then 5 drops of the green one. Water should change to green and then when I add third liquid it should change to red after few drops. The problem is when I add 5 drops of green liquid solution turn red right away.
    Is that mean that TA is 0?
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Richard320's Avatar
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    Re: TA too low??

    It could, but it's unlikely.

    What is the pH? And is the bottle of green stuff discolored at all?
    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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    Pysiek's Avatar
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    Re: TA too low??

    I was lowering the TA to about 50 as recommended in spa. So I use acid to lower pH and turn on all jets to lower TA and rise pH. In spa its a pretty quick process. So I was about 100ppm on TA and 7.8 on pH. I add acid to lower pH again and after I test water again after about an hour my pH is unknown since when I add 5 drops the solution turns yellow. I assume this is pretty low pH reading. And as I said before for TA solution turn red right away
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Pysiek's Avatar
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    Re: TA too low??

    Quote Originally Posted by Richard320
    And is the bottle of green stuff discolored at all?
    Not it's not. I used the solution 3 times the same day . Also I purchase new kit this season.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: TA too low??

    I add acid to lower pH again and after I test water again after about an hour my pH is unknown since when I add 5 drops the solution turns yellow.
    You over dosed the acid. Use 20 mule team borax to get your pH back up to normal. The TA will also come up and the TA test will react correctly.

    Calculate your dosages using PoolMath found in my sig.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Pysiek's Avatar
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    Re: TA too low??

    Great. I will do it and let you know if this helps.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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