Using this waste bin is easy. Just open the self - closing doors on top and place your waste inside. The hooks are there to hold the liners in place, so you don't have to worry about them slipping. When it comes to maintenance, you can use a mild cleaner to wipe down the satin - finish stainless - steel body regularly. Make sure to check the rubber feet and vinyl wall bumper for any signs of wear and tear. If they get damaged, replace them promptly. As for the capacity, it can hold up to 13 gallons of waste, but it's a good idea to empty it before it gets too full to avoid spills. Also, keep it away from sharp objects that could scratch the stainless - steel surface.