Grout Problems! Please, advise!
Our tile installer put floor tiles and grout last week. The grout is Laticrete Permacolor Dusty Grey. The tile is dark grey and combination looked very nice when he was done and grout was still wet. 3 days later we noticed that few tiles had scratches so the installer came back and replaced those few tiles and grout. Another 2 days passed, and we noticed that about half of the grout turned white, or to be precise, it looks like white dust from tile replacement settled on the grout. I simply can't remove it, tried water, vinegar solution, nothing works.
It's really strange that grout hasn't dried enough in 3 days to absorb some dust. I guess installer should have cover all good tiles before removing bad ones.
I know Laticrete has grout colorants to restore original color, unfortunately Dusty Grey is new color and Laticrete doesn't have colorant in this color yet.
What to do? Should I call installer to remove grout and reapply? Are there any other solutions?