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Thread: Pool plaster stain

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    Join Date
    May 2016
    Location
    El Paso tx
    Posts
    5

    Pool plaster stain

    I recently drained my pool that had sitting water since October and once it was drained there was a lot of stains throughout the pool. Last year I did an acid wash and am afraid that multiple acid washings will ruin the plaster. Is there any thing I can do to other than acid washing to get the plaster clean?IMG_1001.jpgIMG_0999.jpg
    12000 gallon, 1 1/2 hp superflo with de quad 60 cartridge filter , plaster ,kidney bean shaped pool

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    Mod Squad Texas Splash's Avatar
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    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
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    17,787

    Re: Pool plaster stain

    Depends on the stains really and how long they have set-in. Organic staining from algae, leaves, etc should improve with some bleaching and scrubbing. If it were iron staining (from local water with iron (well) or some old plumbing), should show improvement with ascorbic acid. Those would probably be your least aggressive measures. I would try the bleach first.

    Our plaster experts might have another angle. Perhaps acid is still suitable, but mixed at a specific ratio that's less aggressive.
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    Join Date
    May 2016
    Location
    El Paso tx
    Posts
    5

    Re: Pool plaster stain

    Cool thank you

    I'll try to bleach it tomorrow and see how it comes out.
    12000 gallon, 1 1/2 hp superflo with de quad 60 cartridge filter , plaster ,kidney bean shaped pool

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