What is this on my grout?
#1
07-15-19, 10:39 AM
What is this on my grout?
We purchased a house that was a flip. Various things are popping up that were not done correctly. Our bathroom has new tile but it looks like there is some kind of deposit, mold, something coming up through our grout. Posting a picture, has anyone seen this before? I scrub it away and it comes back a week later. Could it be a sign of a bigger problem?
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#2
07-15-19, 10:41 AM
Looks like efflorescence. Has the grout ever been sealed? Try that.
Katsmeow112 voted this post useful.
#3
07-15-19, 11:03 AM
Group Moderator
I assume this tile is in a shower. That can happen when water gets into the grout. It dissolves salts and minerals in the grout and it can be minerals from the water itself. This water with minerals wicks to the surface of the grout where the water evaporates away leaving behind the minerals.
#4
07-18-19, 01:33 PM
This is happening with the floor tile in the bathroom, not in a shower. My shower tile actually looks okay. We have a framless glass door that doesn't keep all the water in, so the floor does get wet.
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