The previous owners of our home had marble (with floor heating) installed in the entry and kitchen. I love love love the look of it, but I don't love that they don't seem to have cleaned it very well (like everything, boy were those people gross!!!!)
Anyways, I've tried special marble cleaner, I've tried 'soft soap' (like soft sunlight soap, old fashioned stuff that's supposed to work miracles), but I can't seem to get everything out. I'm sure that if I'd try cleaning it twice a day for a month, eventually all the built up dirt from years will come out, but really, who has time for that?
Any tips on 'deep cleaning' marble without damaging it?