How to Fix a Broken Sprinkler Head

Irrigation heads are the workhorses of your landscape, but they are also vulnerable to errant lawnmowers, heavy foot traffic, and the slow creep of soil erosion. A broken sprinkler usually signals its failure through a geyser of wasted water or a patch of dying grass, both of which cost you money and peace of mind. Fixing this is a fundamental skill that prevents water damage to your foundation and ensures your lawn stays hydrated. Done well, this repair is invisible. You are not just swapping plastic parts; you are ensuring the seal between the riser and the body is tight and the nozzle height is perfectly flush with the soil grade. Don't let a snapped pipe or a cracked casing intimidate you—this is a straightforward exercise in simple plumbing that takes less than an hour to complete properly.

  1. Expose the Broken Head. Use a small garden spade to carefully dig a 6-inch circle around the broken head. Remove the dirt until you can see the connection point where the sprinkler body meets the riser pipe.
  2. Prevent Clogged Nozzles. Before unscrewing the head, wipe away any loose dirt or rocks that have fallen into the hole. If this debris enters the pipe, it will immediately clog your nozzle when you turn the system back on.
  3. Unscrew the Damaged Head. Grasp the body of the sprinkler head firmly and turn it counter-clockwise to unscrew it from the threaded riser. If it is stuck, use a pair of channel-lock pliers to provide extra leverage.
  4. Check for Thread Damage. Check the threads of the riser pipe for cracks or stripped edges. If the threads look worn, replace the riser nipple with a new piece of the same length and diameter.
  5. Thread On the New Head. Thread the new sprinkler head onto the riser by turning it clockwise by hand until it is snug. Do not overtighten, as this can crack the plastic housing.
  6. Dial In Your Spray Pattern. Before attaching the nozzle, turn the sprinkler system on briefly to flush out any trapped air or debris. Once clear, attach the nozzle and adjust the spray pattern to hit the lawn, not the driveway.
  7. Restore Your Lawn Grade. Carefully pack the soil back around the base of the sprinkler body until it is stable and flush with the surrounding ground level. Replace the sod piece you removed in step one.