My two bunnies are litter trained, but for some reason at night will choose to pee on the tile instead of the litter pans. I use a vinegar and water solution to clean up the mess, but wondered if Clorox's Urine Remover would work better. Does anyone have other suggestions for removing stains from the tiles and grout? I would be able to move the bunnies for a deep cleaning until any fumes or odor dissipated.