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Thread: above ground plumbing turning white

  1. Back To Top    #1
    jeffreymlewis's Avatar
    Join Date
    Jul 2012
    Walnut Creek, CA, USA

    above ground plumbing turning white

    Today I began replacing stickers on my above ground plumbing. I decided to scrape off the old stickers (and adhesive residue) with a putty knife. After repeated scraping, the pipes started turning white (see attached picture). That is, I seem to have begun scraping off the black coating from my pipes.

    Is this a sign of trouble? If so, what can I do (short of replacing the pipe)?

    Is it safe to use ammonia-based cleaners (aka Windex) on these pipes?

    Attached Images Attached Images
    15k gal, IG painted plaster (black), 3.0 HP Intelliflo VS, Pentair CCP240, MiniMax 400, build date unknown (estimate 1995), attached spa w/ water fall

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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: above ground plumbing turning white


    All the PVC plumbing started off white (there are some black ... but rare). After install, the builders painted it to try to protect it from the sun's UV rays.

    You did not hurt anything ... just buy a can of spray paint
    Jason, TFP Moderator
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  3. Back To Top    #3

    Join Date
    Feb 2008
    Flower Mound, TX

    Re: above ground plumbing turning white

    Good advice from jblizzle. Welcome to TFP!
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
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    "It depends."- JohnT

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