Next to my slop sink I built a little room and installed a urinal for when I'm filthy and it keeps some of my undesirable buddy's out of my office crapper. Lol! just saying. I tiled the whole think and put a drain in the floor also. I spray it down with bleach and use a hose to hose it down. easy! I have floor drains all over . In each bay, work areas, ETC. I wash the cars down before I put the covers on them so I don't rub in the dirt with the covers.