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Thread: Little "Pimples" Behind Liner

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    Little "Pimples" Behind Liner

    I was in my above ground pool the other day and I notices little bumps almost like pimples all around the pool wall behind the liner. The pool is an Esther Williams pool and is 12-13 years old. I know it could be a sign of wall corrosion, but this liner is less than a year old, so I was able to look the wall over good before putting it in last year and there were no signs of rust or any type of corrosion. It looked like it was in great shape as far as I could tell. Any ideas on what it could be?

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    banditig's Avatar
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    Re: Little "Pimples" Behind Liner

    They mostly corrode were leaks acure, like at the skimmer, returns, wall seam, or around the base. If its all round, I have no clue.
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    Re: Little "Pimples" Behind Liner

    Quote Originally Posted by banditig View Post
    They mostly corrode were leaks acure, like at the skimmer, returns, wall seam, or around the base. If its all round, I have no clue.
    Yep all around the pool. They are about halfway up the wall and go all the way around.

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    Re: Little "Pimples" Behind Liner

    BUMP

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    Re: Little "Pimples" Behind Liner

    I have the same issue in a newer pool, and I don't think it is due to corrosion. I believe it is dirt and sand that is trapped between the pool wall and the liner. Or that's the lie I tell myself to feel better, lol.


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    Re: Little "Pimples" Behind Liner

    Quote Originally Posted by tommyd123 View Post
    I have the same issue in a newer pool, and I don't think it is due to corrosion. I believe it is dirt and sand that is trapped between the pool wall and the liner. Or that's the lie I tell myself to feel better, lol.


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    I guess it's possible that sand got up on the wall when we installed the new liner. Glad to see someone with a newer pool has the same thing going on.

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