Place a clean rag in the bowl to soak up the vinegar. ...
Keep the rag over the stain for 2 hours to allow the vinegar to soak into the cement. ...
Remove the rag from the stain, and scrub the stain with a scouring pad. ...
Dampen a sponge in water, and rinse the area with the sponge.
I took these suggestions off the net by the way. I've never tried it myself! All the best. Acid is corrosive so unless you have an expert who can determine how much to dilute the solution, it can be a bit tricky
Cornerstone Design Studio India
GJ Studio
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