If we don't stock what you are looking for, try sending us a. There are two ways to use these elements for drain cleaning. To connect the wiring, remove the junction box cover attach the ground wire to the green ground screw use your masking tape connection notes as a guide twist the wires together with wire connectors. A lateral drain is that part of a private drain outside the boundary of a property to the point at which it connects with a sewer. If you come to us, you can be sure.