I 've got an in ground system with 8 zones and am fighting a low pressure situation in a few zones. Some heads won't even pop up and others just run very lightly. I've had the water company come out and they say that the pressure meets their minimum requirement so I assume that my options are to add a pump, which would help in the house as well, or swap out some of the heads with a different type. Are there any available? The heads are Rain Bird rotor gear type and are about 10 years old.

The system has worked.......ok....for the most part in the past. Never really been happy with coverage. Any help would be apreciated! Oh yea, and I have called my installer about three times and he keeps avoiding the issue.