Sprinkler systems are a joy, as they take the guesswork out of watering the lawn, and provide ample coverage without your having to drag a hose along the yard on hot days. Unfortunately, sprinkler systems are easily damaged by lawnmowers, dirt, sand and other acts of God. Although damaging a sprinkler head is easy, so is the repair. Before replacing or repairing any sprinkler heads, have a look at the model to ensure that any replacement parts are the correct ones.
Locate the damaged sprinkler head and note the model number. Write the number down and take it to your local hardware store to obtain a replacement.
Determine whether the sprinkler head unscrews at the surface for easy replacement. If so, remove it and screw in a new head. If the head does not unscrew at the surface, you will have to dig.
Insert your shovel into the dirt about a foot away from the sprinkler head, breaking the surface. Using the edge of the shovel, make a square cut around the sprinkler to loosen the sod. Lift the sod up gently to expose the sprinkler. Do not cut too deeply, as this may sever a water line. Use a hand trowel to remove any excess dirt from the sprinkler.
Unscrew the sprinkler head once it is exposed, making sure to keep loose dirt from falling into the exposed connection. Replace the head and rebury.