The Doggie Dooley is a safe pet waste disposal system. It works by breaking down dog waste into a ground absorbing liquid using the enzyme and bacteria action in the Waste Terminator Digester Powder. The Doggie Dooley is like a miniature septic tank for your dog's waste. The system works by breaking down dog waste into a ground absorbing liquid using the enzyme and bacteria action in the Waste Terminator Digester Powder. To install, simply dig a hole and place the unit in the ground. Use the scooper to place your dog's waste in the in-ground Doggie Dooley, add water and the Digester Powder, and your system is ready to go. The easy-to-use system has a foot-operated lid opener. It's non-toxic, non-caustic and safe for all domestic animals. Harmless to lawns, pets, and shrubs. It controls odors and helps keep your lawn and play areas clean and sanitary. Doggie Dooley is made from durable plastic, so it won't rust, corrode, break or crack in cold weather or with normal use. The bacterial enzymes are living organisms and they go dormant when the ground temperature drops to less than 40 degrees F for sustained periods of time. Therefore, you should not add waste to the tanks during this time. Wait until the temperature rises, and follow the start up instructions again. If you have dug deep enough, depending on weather conditions, you may keep using the unit as long as it is digesting. Doggie Dooley recommends adding warm water exclusively in the winter. Digester enzyme re-fills are available in a 5-pound container. Super Dooley Digester Powder is also available in a 3-pound container. The Super Digester Powder works five times faster than other enzymes and prevents sluggishness, slow drain off and unpleasant odors.