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Thread: Low TA, But pH is Happy

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    Low TA, But pH is Happy

    Ok, I saw a thread similar to this before, but I guess I'm too much of a worrier to just let it go. So... 2 weeks after having an RO trailer come out and lower the calcium and CYA, here are my readings:

    FC 2
    TC 2
    pH 7.7
    TA 50
    CH 180
    CYA 50
    Temp 78

    The pH has been holding pretty steady for a week. I'm using only liquid chlorine and have added no acid.

    Should I attempt to raise the TA at this point? I'm expecting a ton of kids in the pool this weekend, so if I'm going to monkey with pH I need to get started now.

    Thanks for your help.

    Doug
    23k gallon plaster igp and jacuzzi, Pentair variable Speed pump, Pentair DE filter, passive solar heat, gas heat

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    MarianParoo's Avatar
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    Re: Low TA, But pH is Happy

    If your pH is stable, leave the TA where it is. TA can really vary from pool to pool. You want it to be where pH is pretty consistent.
    27K IG rectangular; vinyl liner; sand filter; 1hp pump; auto-cover; heater; K-2006C.

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    MarianParoo's Avatar
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    Re: Low TA, But pH is Happy

    Are you planning on raising the CH back up a bit? With a plaster pool, you are a bit low and your fill water is 250, so you won't raise it quickly.
    27K IG rectangular; vinyl liner; sand filter; 1hp pump; auto-cover; heater; K-2006C.

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    Mod Squad pooldv's Avatar
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    Re: Low TA, But pH is Happy

    Good stuff, TA at 50 is fine as long as your pH doesn't bounce around. I also agree with raising CH to 250.
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    Re: Low TA, But pH is Happy

    Quote Originally Posted by MarianParoo View Post
    Are you planning on raising the CH back up a bit? With a plaster pool, you are a bit low and your fill water is 250, so you won't raise it quickly.
    Thanks. I will bring up the CH. I wanted to give any residual calcium from the walls time to go into solution with the water. I think I've given it enough time. Just want to do it carefully because I don't want to do RO again or drain and fill anytime soon.

    Thanks,
    Doug
    23k gallon plaster igp and jacuzzi, Pentair variable Speed pump, Pentair DE filter, passive solar heat, gas heat

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    Divin Dave's Avatar
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    Re: Low TA, But pH is Happy

    pH is fine. Your FC is too low though.
    Pool School - Recommended Levels
    Divin Dave,
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