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Thread: Weird stains on liner

  1. Back To Top    #1

    Join Date
    May 2007
    Fayetteville, Arkansas

    Weird stains on liner looks like just a standard 'needs brushing' appearance. The liner is mostly a sky blue so it really shows up. A friend said he had something similar a few years ago. His installer said it was behind the liner and was 'showing through'.
    Anyone ever had a similar experience and can it be removed safely?
    Thanks for the replies in advance.

    20x40 30,000 gal IG Liner, Pentair II Sand

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Weird stains on liner

    You might as well double check to see if they are iron stains, even though it doesn't sound like it. Try placing a vitamin c tablet on one of the stained areas and see if it clears up in that spot.

    The behind the liner thing is very difficult to treat, if that is what it is.
    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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