Exactly how dirty is this wateR? I would unscrew the bonnets and clean out the valve
thouroughly, not missing anything, because even a tiny bit of grass will hold a valve
half open or fully open
Good Luck
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Email me with any other questions
RaysSprinklers@aol.com
Raymond Padula Jr.
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers