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Thread: Brown spots

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    Brown spots

    I have a 24' round above ground pool, vinyl liner. I have a bunch of brown spots on the floor of the pool. What causes them and can they be removed?

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD
    I assume they don't brush off. There are a number of possibilities. One way to narrow down what might be going on is to make two tests. Get a few Vitamin C tablets and crush them and put the powder in a sock. Rub the sock gently on the stains and see what happens. Also, get a trichlor tablet and rub it gently on the stain and see what happens.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    divnkd101's Avatar
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    Mar 2007
    Pearland, TX (Houston Suburb)

    Please post only in one location. I promise plenty of people will join in the discussion. Welcome to TFP.

    21K Inground Custom w/ Spa (Gunite/Plaster), SWCG, Hayward Northstar, Polaris 280, Hayward Color Logics, Jandy PS-8

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    brown spots

    sorry about the extra posts - i am new to this and didn't realize that I did that.

    What does the Vitamin C tablets do? Trichlor tablets - are those the chlorine sticks? I have chlorine sticks do I rub one on the stain?

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana
    Vitamin C will lighten or remove the stain if the stain is metallic. The chlorine will remove it if the stain is organic. I just put a vitamin C tablet on the spot and leave it overnight.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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