I am at a loss. And I guess I am going to have to begin taking the whole **** thing apart.
I've gone over everything visually and there is nothing clogged. I've pulled the screen and it had a bit of junk, but really nothing. The agitator seems very powerful and I can get a closed system 60psi. I can maintain it with my center section on (but for some reason it is truly only a single nozzle). But if I open either right or left boom, pressure drops from 60psi to 20 and if I open both, it drops to about 8psi.
I've removed the hoses from the valves, and they are flowing 'well'. But I already expected that as I can get water out of all nozzles, just at a very decreased pressure.
I don't really know where to go from here. My options, as I see it are:
1. Bad pump... able to get pressure against a closed system but cannot maintain it when open.
2. Delaminated tank to pump suction hose, allowing 'some' water but acting as a functional limiter.
3. Disfunctional pressure regulator.
The system is so 'simple' I can't think of anything else. It was functioning at pressure for at least 18 of the 20 ac I was spraying, but I am not exactly sure when it dropped. I just noticed that it had and been trouble since that time.
I guess the easiest is to remove and check the hose.
Then pull and replace the regulator.
Then finally pull the pump apart, which is really something I don't want to do if I am not sure it is the issue.
Any more thoughts?