Removing ''hard water" stains from brick work.
Brian Reay explained on 18/04/2019 :
We live in an area with especially hard water and had an issue with a toilet
overflow- fixed some time back. However, it left some stains on the wall. I
had hoped they would fade but they hadn't. Scrubbing and power washing hasn't
helped.
Does anyone have any suggestions, please?
Ketchup I was once told, would remove it.
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