Q. We have a heated, concrete floor in our new four season room. After the floor was installed we had the room dry-walled. There is white drywall dust imbedded in the floor. I can not remove it with any cleaner I have tried. I have used many mops, scrubbed on my hands and knees for hours with no success. We are thinking of covering up the floor with ceramic because it looks so awful! Is there anything I can do to save the floor?
A. If a cleaner like Simple Green will not remove the drywall dust from the pores of the concrete, you can try a solvent like xylene or laquer thinner in a small out of the way area. Scrub it into the surface, it should turn the dust into a watery paste you can rinse and pick up with a wet vacuum.
Try it in an area that will not show as it may slightly discolor the concrete.
You could also rent a pressure washer with an enclosed spray end. Use with hot water and a wet vacuum.
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