Item 2000 Doggie Dooley "Green Septic Tank Style"- Plastic Tank; for 1 large dog or up to 2 small dogs. Keep lawns and play areas clean and sanitary with the Original Doggie Dooley. Comes fully assembled but requires digging a hole (approximately 1 hour installation time from start to finish). Simply install in the ground, drop in dog waste, and occasionally add Digester and water for continuous break down of waste. Works like a home septic system by using Enzyme and Bacteria action to turn waste into a ground absorbed liquid. The Eco-friendly Doggie Dooley is harmless to lawns, pets and shrubs. Each unit comes with a starter supply of Digester. Individually boxed, suitable for re-shipping. Works well in all soil conditions except hard clay and heavy sand. The Doggie Dooley is an excellent way to dispose of pet waste safely and control odors. For over 45 years, Doggie Dooley, since 1968! The Grass is always greener around the Doggie Dooley!