Why do sprinkler heads leak after the system shuts off?
If heads continue dripping or leaking after the system shuts off, the issue is usually low-point drainage or a valve seal failure.
What Causes Post-Run Leaks
Typical causes include:
- Heads located at the lowest elevation in the zone
- Valve not sealing properly
- Debris inside the valve
- Cracked risers
- Worn internal seals
- Pressure issues
Low-point drainage is normal in some systems — but heavy, continuous leaking indicates a valve problem.
What to Expect From Zazu Landscaping
We determine whether the leak is normal drainage or a valve failure, then perform repairs to stop water waste and prevent muddy patches.
Locations We Serve
Sprinkler leak troubleshooting in Austin, Cedar Park, Round Rock, and Pflugerville.