Originally Posted by blueline
I noticed some burnout where I hadn't previously had any issues. I turned on the zone and saw that the sprays weren't reaching that area. It seems like the pressure on that zone is much lower than the adjoining zone that has the same number of heads.
I checked the filters on each head which were fine and left the last head off to see if I could flush it. The water would just bubble up and wasn't a gusher.
This is either a valve issue or a leak, right? If I turn the spray heads off at the head and my pump still runs, it would confirm a leak? I don't have any wet unusually green areas.
ps: I've been fight with some voles (though not in that area).
Forgive me for suggesting this if it's too obvious, but I know I/staff have come across situations like this where the FC on the valve in question has been cranked down by someone in error. (never the homeowner of course
Anyways, I always find it's good to never assume and double check the FC just to be sure when one zone is acting funny and the rest are fine.
Other than that, I would go straight to turning the heads off and checking for flow.. Then start the dig!!
Good luck with it, let us know the cause!