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Thread: Question About TA Test

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    Question About TA Test

    Hi everyone:

    New pool owner here and I'm trying to get a handle on my water chemistry. Last night I measured my TA with the TF-100 kit and I'm wondering about the instructions that say to add drops of the R0009 until it turns red. Does "red" really mean red? My solution turns to pink after 3 drops and gets a little darker with subsequent drops, but it never gets red, just dark pink. So do I stop adding drops when it first turns from green to pink, or keep adding until it really goes to red (not sure if it ever will).

    Thanks!
    Seattle Area
    18x36 Kidney Inground Vinyl
    Pentair VS 3050
    Pentair 420 Cartridge Filter
    Pentair Easy Touch

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    frustratedpoolmom's Avatar
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    May 2007
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    Re: Question About TA Test

    I'd say your TA is 30-40. It's like a magenta pink, not a true red.

    Baking soda...

    Use the Pool Calculator to help you figure out how much to raise the TA up to 70-80.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Richard320's Avatar
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    Re: Question About TA Test

    Quote Originally Posted by grantorino
    Hi everyone:

    New pool owner here and I'm trying to get a handle on my water chemistry. Last night I measured my TA with the TF-100 kit and I'm wondering about the instructions that say to add drops of the R0009 until it turns red. Does "red" really mean red? My solution turns to pink after 3 drops and gets a little darker with subsequent drops, but it never gets red, just dark pink. So do I stop adding drops when it first turns from green to pink, or keep adding until it really goes to red (not sure if it ever will).

    Thanks!
    It's pink, not red. And if you have a lot of chlorine in the water, the test goes from blue to yellow, not green to red. Add until it turns pink. Then add one more drop. If it gets a little deeperpink, that's the number. When adding drops no longer changes anything, you're done. Ignore the drop that did nothing.
    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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    Re: Question About TA Test

    Perfect, speedy information, thanks! That would put my TA at about 40. I'll check out the pool calculator and buy some baking soda.

    I'm sure I'll have many more questions as I try to figure all this out, so thanks in advance!
    Seattle Area
    18x36 Kidney Inground Vinyl
    Pentair VS 3050
    Pentair 420 Cartridge Filter
    Pentair Easy Touch

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