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Thread: Closing instructions for curing plaster

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    Butterfly's Avatar
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    Closing instructions for curing plaster

    Maybe I should say, "When the water temp drops below 60 degrees, do we need to do anything other than the ordinary closing procedures if we have plaster still curing?"


    Joyce
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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    KurtV's Avatar
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    Since your new plaster went in in March, I think it's safe to treat it like
    old plaster.

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    Butterfly's Avatar
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    Thanks, Kurt, but when is it going to start ACTING like OLD plaster? I still add MA every 3 or 4 days....7 or 8 cups per week! What happens to the chemistry when the water temp is below 60 degrees?

    Joyce
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    JasonLion's Avatar
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    As the water cools all of the chemical reactions slow down. You should start seeing this even before it gets down to 60 degrees.
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    KurtV's Avatar
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    Quote Originally Posted by jjparrish
    Thanks, Kurt, but when is it going to start ACTING like OLD plaster? I still add MA every 3 or 4 days....7 or 8 cups per week! ...

    Joyce
    I don't know. Mine is almost two years old and my pH is still constantly rising. Even with a total alkalinity of 60-80 ppm (depending on the pH, 50-80 ppm borates, and using tri-chlor most of this summer. Some pools are just acid eaters.

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    Butterfly's Avatar
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    Kurt, would you tell me what your water chemistry did last close/winter and what you did about them?

    TIA, Joyce
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  7. Back To Top    #7
    KurtV's Avatar
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    I don't close as the climate here is mild. I probably added acid once a week or so from November through March/April. I try not to fight the pH too much. I let it drift up to 8 or even a little higher and then only take it back down to 7.8 or so. I use a lot less acid this way than when I was trying to keep the pH down in the 7.2-7.6 range.

  8. Back To Top    #8
    Butterfly's Avatar
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    Kurt. We don''t 'close', either. Will keep an eye on the pH throughout the season(s)

    Thanks for your comments.

    Joyce
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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