How to Plumb a Sewer Pump

Wrap Teflon tape clockwise four to six turns around the PVC male adapter’s threads. Screw the adapter into the sewer pump's outlet port as tightly as possible by hand, and then tighten the fitting one turn with the slip-lock pliers. Place the pump in the sewage pit and measure the distance from the adapter to the top of the pit. Remove the pump from the pit.

Cut a piece of 2-inch pipe to the length measured plus 12 inches. Drill a one-eighth inch hole into the pipe 6 to 8 inches from one end. Dip the dauber supplied with PVC primer into the primer and apply it around the outside of both ends of the pipe and inside of the male adapter.

Apply PVC glue the same way as the primer to the pipe’s outside end closest to the one-eighth inch hole and to the inside of the male adapter. Fit the glued pipe end into the male adapter as you turn it one-quarter turn. Hold it in place for 30 seconds.

Place the pump in the pit and put the sewage pit cover over the pipe. Run the switch and pump cords through the small hole in the pit cover. Temporarily install three of the bolts or screws that hold the cover in place.

Apply primer to the inside of both ends of the check valve. Note the flow direction indicated by the arrow on the check valve. The arrow must point up and away from the pit when the valve is in place. Apply glue to the pipe’s outside end and to the check valve’s inside bottom end. Fit the check valve over the pipe end.

Cut an 8-inch long piece of pipe and apply primer to both ends. Apply glue to one end and to the inside of the check valve. Fit the pipe into the check valve and hold it in place for 30 seconds. Apply glue to the end of the pipe and to the inside of the ball valve. Fit the ball valve over the end of the pipe and hold it in place.

Cut the main sewer pipe for the sanitary T fitting. Apply primer to both ends of the sewer pipe and to the inside of all three pipe hubs on the T. Apply glue to the two pipe ends and the inside of the two hubs that fit over the sewer pipe. Fit the tee into place. Align it correctly as you turn the T one-quarter turn. If the main sewer pipe is horizontal, the T must deliver the water into the sewer pipe’s top, not the bottom.

Cut and fit additional pipe connecting the ball valve to the sanitary T in the main sewer pipe. Apply primer and glue to each pipe end and to the inside of each fitting hub. Add the remaining pit cover bolts or screws and tighten them securely with a wrench or screwdriver.