I have a two station lawn sprinkle system and one has very little water pressure what could be the cause?

Question

I just buried the sprinkle system, they worked fine when I tested them. It is a two station system with Orbit automatic anti-syphon contorl valves and two Obit Saturn III gear driven sprinkler heads on each valve. The station closest to the water supply works fine. Any help to diagnose this problem would be much welcomed. Thank you

Answer 1

It could be a clog, leak, or other variable. Flush the system with the heads removed.  Switch the heads and observe any changes.

Answer 2

could be that you have an underground leak.  Also what about the well pressure.

Answer 3

Is there any way that you could have kinked the line when you buried it?

If its new, then you won't be digging up a good lawn again.

Answer 4

There is a valve on each control valve.  Make sure it is wide open on the one with less pressure.