David Edie installed my sprinkler system 4 years ago and I was very impressed with his work ethic. So, when a water eruption occurred I contacted him. I felt very fortunate to hear from him the next day as 4 other companies never responded to my calls.
David attempted to fix the water eruption with no luck. Then, he asked me if I was experiencing low water pressure. Given my YES answer, he checked the main water valve and found it was only half way open. That solved the sprinkler problem. Sadly, several plants lacking adequate water for too long didn't make it.