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Thread: Is This Scale?

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    Join Date
    Feb 2012
    Location
    South Texas
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    61

    Is This Scale?

    Weather allowed us a great day of enjoying the pool, and I noticed a white, chalky build-up ONLY around the tiles under the spa overflow. As you'll see in the pics, the buildup was mainly concentrated on the grout. I could easily wipe it off, and then it disintegrated into the pool water. Thoughts?

    FC; 7
    CC: <.5
    pH: 7.4/7.5
    TA: 130
    CH: 210
    CYA: 60



    7000 gallons, S8M500 Filter, IG beadcrete plaster, IntelliFlo VS

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    Mod Squad zea3's Avatar
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    Jul 2009
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    Houston, Texas
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    Re: Is This Scale?

    Not likely, but it could be efflorescence. How old is the pool?
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Join Date
    Feb 2012
    Location
    South Texas
    Posts
    61

    Re: Is This Scale?

    Quote Originally Posted by zea3
    Not likely, but it could be efflorescence. How old is the pool?
    Just over a month, so still adjusting.
    7000 gallons, S8M500 Filter, IG beadcrete plaster, IntelliFlo VS

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    Join Date
    Feb 2008
    Location
    Denton, TX
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    5,061

    Re: Is This Scale?


  5. Back To Top    #5

    Re: Is This Scale?

    I think that the part above the water-line is probably efflorescence. I'm thinking that the part below the water line might be cement from plastering.

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