Thread: Efflorescence
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Unread 01-24-2020, 11:44 AM   #5
Michael's tile
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Join Date: Jan 2020
Posts: 3
Yes. We waited about a week and cleaned a small area yesterday and it actually looked good when we left yesterday but when we got here this morning it had turned back grey again. Normally you can scrub the joints a little and it will turn back the original color but it's like the whole joint turned all the way to the bottom or something. I have been doing tile for 20 years. I've grouted a lot of floors but I have never seen one turn like this to where I couldn't clean it off.
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