We have cleanouts in the house, in fact we have one for each of the lines in the house and one in the shop for each line that goes down to the main line to the tank. There are also cleanouts every so many feet 250 yards down the hill to the tank and field itself. These outdoor cleanouts stuck up only 3 inches when we moved here, and I extended them to 12 inches above ground and hit them with glow paint, and then glow duct tape as they are tripping hazards in the pitch dark on the way to the henhouse or barn.