We just put down a slate tile floor. We want to use two different colored grouts. I started with the darker color, a barn red. I sponged off the excess and then cleaned the tiles a second time with clear water. Even after dusting, the tiles still have very faint red hue to them. You really can't pick out the red so much as the slate tiles have now lost their color. The floor looks much flatter and doesn't have the natural color variations it once had. How should I clean this extra color off? Would a mild acid wash do the trick? If so, should I use muriatic, viniger or the grout cleaner I saw at the home center? Is there something else I should try first?
The next step will add the second grout color. She has picked a natural grey. Should I just slap the grey on over the red or should I try to mask the red grout off?
Certified boat fetish.