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Thread: Basement stain

  1. #1
    Join Date
    Apr 2012
    Posts
    1

    Default Basement stain

    We have a new house with a basement floor issue; our builder let it flood, and sit, several times with muddy water and how, even after it was pressure washed, a brown stain remains on the concrete. I've tried a small spot with muriatic acid, without any noticeable difference. Anyone help? Thanks, frank

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,598

    Default Re: Basement stain

    Try a solution of TSP + powder laundry detergent mixed in warm water.

    If the stain is still there, try bleach (make sure the area is ventilated, or you end up sick).

    Please report back.

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