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Thread: Vinyl pool is like sandpaper

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    Join Date
    Jun 2014
    Mcgregor Tx

    Vinyl pool is like sandpaper

    I have been trying to get my pool up for a few weeks now but weather has been sketchy. so I notice my liner is coated with a sandpaper like coating that will not brush off Calcium I'm thinking? not sure but I need some help getting it cleaned up! here are my test results from today

    FC 3
    PH 7.6
    TA 100
    CH 150

    Any help would be appreciated as to what anyone here thinks I should do next?
    Intex 22'x52" 10.5k round ultra frame agp Intex 16" sand/salt water system pump model#28681eg k2006 taylor test kit

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Vinyl pool is like sandpaper

    With a CH of only 150ppm, your pH would have to have been left very high for a long time to develop calcium scaling ... although given the description that is also what I would have guessed.
    Jason, TFP Moderator
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  3. Back To Top    #3
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: Vinyl pool is like sandpaper

    Probably is calcium scale. You can try lowering your CSI to -0.6 and brushing a lot. Like as many times a day as you can stand and get some volunteers. It should help over a few weeks to knock it down some. Enter all your test results in Poolmath and it will calculate your CSI. Tweak PH and TA to move it.

    More here, Pool School - Calcium Scaling
    And here, Langelier and Calcite Saturation Indices (LSI and CSI)
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