Question
I have a 4 year old home with a Rainbird drip irrigation system with one zone.  The drip runs constantly, even when I turn the system off at the controller box, the drip still runs.  I replaced the solenoid, no change.  Thoughts?

Answer
Hey Don, if you already replaced the solenoid, and that did not help, then you need to install a new diaphragm in the valve. Go to www.irrigationtutorials.com, and this website will show you how to replace the diaphragm. Good luck and have a great day.