I just pulled my PU out of the garage and the mice have chewed holes in a mattress, urine and droppings all over the place (canvas, curtains, etc.). I can wash the curtains that haven't been destroyed, put I was wondering the best way to clean the canvas. Just use a heavy duty cleaner and then waterproof? Or is there a specific cleaner that works so that I don't have to waterproof again? I don't think I can get the smell out of the foam mattresses, but this is an older PU and finding replacement mattresses are going to be a challenge. No canvas chewed through, just a spot in a screen. The mattress cover was chewed up, I can patch that if I can find or clean the foam itself. Any ideas on cleaning the canvas and/or the mattresses?