Works! We have 3 dogs and a small backyard so poop problem. We decided to try a black, oily urn to collect feces. We put a black kitchen garbage bag inside and regularly clean the garden by throwing feces into the garbage can. Once a week we throw the rubbish out of the bin into a bin that is picked up by a garbage company. We no longer have a smelly trash can in our garage. I even started packing bags of dog walks into a black oily trash can to further eliminate every smell in our garage. We keep Black Oily in our backyard and it doesn't smell for a week. Except when we open the lid to make "deposits"! Love it.