DIY Sprinkler Repair: What You Can and Can't Fix
Many sprinkler repairs are well within reach of a handy homeowner and can save you a service call. Here's a practical, step-by-step look at the most common DIY sprinkler repairs you can tackle yourself.
Replacing a broken head
The most common fix: turn off the zone, dig around the head (keep dirt out of the line), unscrew it counterclockwise from the riser, and screw on a matching new head. Match the type, height, and nozzle. Run the zone and adjust the spray. A ten-minute job.
Cleaning a clogged nozzle
If a head sprays weakly or unevenly, remove the nozzle and the small filter screen beneath it, rinse out grit, and reinstall. Hard-water buildup can be soaked off. This restores many 'weak' heads instantly.
Adjusting spray and radius
Most heads have an adjustment screw or collar to set the spray arc and distance. Tweak them so water lands on plants, not pavement — a quick way to stop overspray and save water.
Cleaning a valve or swapping a diaphragm
For a valve that leaks or won't shut off: shut off the water, unscrew the bonnet, clean out debris, and replace the inexpensive diaphragm if worn. Reassemble and test. A model-specific repair kit makes it straightforward.
Replacing a solenoid
If a zone won't turn on but the valve is fine, swap the solenoid: shut off water, unscrew the old one, thread in a new one, and reconnect the two wires with waterproof connectors.
Know your limits
Mainline leaks, buried wiring faults, and pressure problems are better left to a pro. Our irrigation team can step in when a repair is beyond DIY.
Frequently asked questions
What sprinkler repairs are easiest to DIY?
Replacing heads, cleaning nozzles, adjusting spray, and swapping a valve diaphragm or solenoid are all beginner-friendly with basic tools.
Do I need to shut off the water to replace a head?
Turn off that zone at the controller; you don't usually need the whole system off to swap a single pop-up head.
Arbol Roble has cared for Inland Empire landscapes since 1997, serving Rancho Cucamonga, Ontario, Fontana, Eastvale, Corona and Riverside. Request a free quote or browse our residential and commercial services.
About the Author
The Arbol Roble team are licensed landscaping and irrigation professionals (CSLB License #1077455) serving Rancho Cucamonga, Ontario, Fontana, Eastvale, Corona, Riverside, and the greater Inland Empire.