Stains On Concrete Wall

There are stains on my concrete walls. Any idea what they are? How do I get rid of them? Picture attached.

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1 Comment To "Stains On Concrete Wall"

#1 Comment By BushDoctor On 04/01/2020 @ 10:32 am

It is very hard to say without much context to the photo. I would try things like bleach, vinegar, baking soda, household cleaners, or pressure washing. These will all be good ways to remove stains from surfaces.

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