Forgot to mention that both barrels have a 2" drain for ease of cleaning. They come together as one pipe that then is trenched and pops out in one of his flower beds. A 2"ball valve hidden within a moss rock covey and top to prevent UV destruction of the red TURN handle is parammont. I've seen way to many of them snap and break with time and sun. I opted ball valve vrs. gate valve.. for fear of dribble leaks years down the road.