Is there an ultra fast method for grinding a marble floor? It takes me forever to grind a marble floor flat.

There are now available many course abrasives that can grind a marble floor flat in a hurry. These abrasives are called lippage plates. They work exceptionally well. Be sure to test in small area before grinding the entire floor. Some of these plates may leave very severe, deep scratches which are very difficult to remove, so, be sure to perform a test patch making sure to hone and polish the area.

TIP If you get very deep scratches from the lippage plates try using a 60 grit metal bond diamond to remove them.