|
Excellent design analysis by lazupup. But let me try to simpify: Did the system used to work OK? My impression from your question was that it DID work , meaning an OK design, and now there is a problem.
So, if I am reading correctly, we need to look for something like a valve between the from yard, and the back yard manifold, that is partly closed or clogged.
You mentioned you moved some valves, and thus could have introduced some dirt in the pipes. Solenoid valves are very sensitive to dirt blocking the orifices which control the pilot operation. You might need to literally cut the pipe leading to the valves, and confirm if you have adequate pressure arriving there. If not, then you need to back up and look for the valve, crushed pipe, etc.
|