Sprinkler Up and Running But then lost pressure

[Pcapes]

HI,
I am having an unusual to me issue getting my sprinkler up and running this spring. Was hoping someone some insight. I have a 10 zone sprinkler system off of a sandpoint. I have good water pressure coming out of the pump. I have had the system up and running, all zones up and good pressure. When it got done I started to run a full cycle again and it got to zone 2 and lost pressure. there is water at the heads but no pressure, No pressure on any zones after this.
I proceeded to fill the lines back up with the hose, started it back up, all zones ran a good test run. Started it up again to run a full cycle, stopped at zone 2 again, same issue, no pressure any more. I checked the diaphragm and solenoid for that zone, nothing out of the ordinary. I do not see water leaking anywhere, no heads leaking.

Will also add, after this happened checked to see if the pump lost prime, it did not.

Thoughts? I am planning on checking all valves, but not sure that one bad valve would cause the whole thing to lose pressure. Just not sure where to go next.

 

[Reach4]

Try starting with zone 2, to see if zone 1 exhausts the well.

I hope your controller makes that easy enough.

When you say pressure, are you referring to the reading on the pressure gauge, or the volume of water coming out of the sprinkler heads.

I proceeded to fill the lines back up with the hose, ...

Wondering what that meant.

 

[Sponsor]

 

[Pcapes]

Try starting with zone 2, to see if zone 1 exhausts the well.

I hope your controller makes that easy enough.

When you say pressure, are you referring to the reading on the pressure gauge, or the volume of water coming out of the sprinkler heads.



Wondering what that meant.

Yesterday we started zone 1 worked great, started 3 worked great, started 7 worked great. Started 2, it would not push the heads up. There was water at the heads but they would not come up.
Then we tried a variety of the zones after that to see if they would work and none would come up after that. We have a pressure gauge out of the pump, that should little to no pressure.
Prior to that things had plenty of pressure.

 

[Reach4]

Try starting with zone 2 today.