How to Fix Broken Sprinkler Sections

Locate potential leaks in the underground sprinkler line by looking for pools of water or overly wet areas in your lawn. If required, turn the sprinkler system on for 20 minutes and then do an inspection.

Remove the sod from the area where the water pools. Roll the sod so you can use it as a patch after the repair.

Dig out the soil underneath so the broken pipe section is clearly visible. Work carefully to avoid further damaging the pipe. Remove 2 to 3 feet of soil underneath and along the sides of the broken sprinkler line to provide room to make the repair.

Clean the dirt and debris along the pipe with a rag so the cracked section is clearly visible. Cut the broken pipe section from the irrigation line using PVC pipe cutters. Include 4 to 5 inches of pipe on either side of the crack. Set the broken section aside and let excess irrigation water drain out from the ends of the intact pipes.

Measure the length of the broken sprinkler pipe section and cut an identical length of replacement pipe to size using PVC pipe cutters. Sand the inner and outer ends of the replacement PVC pipe, and the ends of the intact pipes with sandpaper.

Apply a thin layer of PVC primer to the ends of the replacement pipe and the inner edges of the couplings. Spread a thin layer of solvent cement along the inner edge of a coupling and one end of the replacement pipe.

Insert the cemented end of the replacement pipe into a coupling, twist it lightly and hold for a few seconds. Repeat the process of joining the second coupling to the other end of the replacement pipe.

Apply PVC cement to the end of an intact pipe and join the other end of a coupling to it. Twist lightly and hold for a few seconds. To attach the second coupling to the other end of the irrigation line, flex the replacement pipe slightly.

Turn the sprinkler on after 20 minutes and check for leaks. If no leaks occur, pack dirt into the trench and tamp it. Patch the exposed soil with the rolled grass or sod.