Connect an "L" connector to both ends of a six-foot PVC pipe. Turn both sides the same direction. This will be known as the back.
Insert a four-foot section of PVC pipe in all of the available openings in the "L" connector. Ensure that each end matches each other. Attach an elbow to the end of two four-foot pipes on the same side. Attach a tee on the other two sides.
Connect a two-foot section of pipe into the open ends of the elbow. Attach a tee to both pipes. Connect the two tees with one two-foot section. This side will be known as the front.
Insert six, six-inch pipes into all four tees.
Connect a tee to the two six-inch pipes on the front. Insert a one-foot piece in both tees on the front. Position the one-foot pipes toward each other. Connect both one-foot pipes with a tee. This will be tight and the pipes will have to bend. Force the bend down. Insert a one-foot section of pipe in the tee. Turn the tee upward. Connect a tee to the top.
Insert a six-foot pipe in the two openings on the tee in the front.
Attach an elbow to the outside end of the six-inch pipe on the back. Connect the six-foot pipe to the elbow on the back. This will be tight, and the pipes have to bend. Force the bend down. Repeat with the other side.
Insert a 4-foot pipe into the tee in the front. This is the last connector installed in step 5.
Attach an elbow to the inside end of the six-inch pipe on the back. Connect the four-foot pipe to the elbow. This will be tight, and the pipes have to bend. Force the bend down. Repeat with the other side.