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Thread: Stain on one tile under the stack stone water fall

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    Stain on one tile under the stack stone water fall

    Hi all,

    I just noticed there is some yellow-brown staining at one tile under the stack stone water fall (see attached pic). Does any one know the reason and how to clean it? I tried to use the brush with chlorine but it does not remove the stains. I use TFTest kits to test the water and the water is in the range.

    Thanks for any suggestions and comments.20150726_091202.jpg

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    Mod Squad kimkats's Avatar
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    Re: Stain on one tile under the stack stone water fall

    That looks like rust to me. Try putting a vitamin C tablet on it and see what it does.

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    Re: Stain on one tile under the stack stone water fall

    Quote Originally Posted by kimkats View Post
    That looks like rust to me. Try putting a vitamin C tablet on it and see what it does.

    Kim
    Thanks, I will try it. Any idea why the rust get to the tile?

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    duraleigh's Avatar
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    Re: Stain on one tile under the stack stone water fall

    Any idea why the rust get to the tile?
    That looks like it is in your water as a soluble and then precipitates out. Acid will most likely remove it.

    2 parts water and 1 part 31.45% muriatic acid.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Stain on one tile under the stack stone water fall

    Thanks, duraleigh.

    I cleaned the stain/rust, and pool builder sent the pool coping guy to look at it. They said it might be caused by some small hole between the stack stone and the tile, water going in and bring the brown things out. Not sure it makes sense, but they did seal the side that above the stain/rust. Let's see if it will come back.

    Should I add Jack's Magic for prevention of stain/rust for the pool water?

    Thanks.

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