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Airhead
mespilus
@freddo
Hey hive mind. One of the many jobs this weekend is to clean the flagstone steps to my house. I’ve removed most of the moss and mould off using Zep masonry cleaner but some small areas of black mould remain. I’ve tried vinegar and also a 2.5% solution of sodium hypochlorite, neither of which have worked. Anyone got any suggestions?
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