Dan you are wrong. I had 2 bathrooms remodeled about 5 yrs ago. 1 bathroom is perfect no problems. The other bathroom has the EXACT same issues described
A very strong chemical odor which does resemble the smell of the grout. Its as if it never dried AND funny thing is, the grout which is black DOES occasionally run. And I have black grout stains to prove it. The other bathroom has brown grout. I'm just as baffled so please keep me informed.
Connie