One of my customers usually has me clean his shower glass, but this next time he wants me to clean the shower marble walls and the small square stones of the shower floor. It seems that he is mostly interested in restoring the grout.
Now, I know that marble is delicate and can be destroyed easily.
I went to home depot and there are 2 types of marble cleaner:
those for polished stone
those for unpolished.
My questions are:
What tool and cleaner combo do you use to clean the grout? Is a wire brush too harsh?
Is there a cleaner you can use on all delicate stone grout?