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Thread: Doing an abosrbic acid treatment right now to remove stains,

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    Join Date
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    Doing an abosrbic acid treatment right now to remove stains,

    Doing an abosrbic acid treatment right now to remove stains,

    I'm 1 hour in, just tested my PH its at 6.8, i have the filter in reciirculate.

    I do have a heater

    should i raise my PH?
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

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    JasonLion's Avatar
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    Re: Doing an abosrbic acid treatment right now to remove sta

    That depends on how careful you were when lowering your PH. During an AA treatment you want the PH right near 6.8 to 7.0. But you don't want it below 6.8. Unfortunately, the common PH test will show any level below 6.8 as if it was 6.8, so you might actually be lower. If you were careful not to go below 6.8, then leave things alone. Even if you might have gone just a bit below 6.8, leave things alone for today, but start raising PH gently after sequestrant has been in a few hours. But if you might have overshot and lowered significantly below 6.8 it would be best to raise the PH very gently and slowly till it is just detectably above 6.8. Be very careful not to make any sudden or large changes in PH as that might interfere with the AA treatment.
    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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    Re: Doing an abosrbic acid treatment right now to remove sta

    raised it to 7.0 to be safe, AA removed most of the stains but got dark outside, so hard to tell, 2 hours in i added the seq, its to dark outside now, so will have to wait in the morning to see how things look.

    pool will get 36 hours circulation/filteration before i start adding chlorine.

    free chlorine was .5 when i added the AA, required 1.5lbs put in 1.75(container size) and threw in a bottle of vitamin c.

    15,000 gallons

    just turned on the pool light, looks pretty good, but really will have to wait for day light.
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

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    Re: Doing an abosrbic acid treatment right now to remove sta

    When should i do my first backwash? I do use fiber clear, does that have a chance of absorbing any of the iron?

    have a spa, so that will gradually raise my PH
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

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    Re: Doing an abosrbic acid treatment right now to remove sta

    Also trying the Culator, will post my results in the future, as you gotta live it in the skimmer for a month
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

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