Question
We have a Rain Bird system that was professionally installed by the previous owner.  We had no issues last year and had the system closed for winter by a professional.

We tried opening the system today (by ourselves).  We turned on the main water line, and tried to run each line with the electronic controller.  Zone 1, worked fine as did Zone 3.  The rest of the zones are getting water, but low pressure from half in Zone 4 to a dribble in Zone 2 and 5 (with some not popping up).

Where the main valves are, we only have 3, not 5 (which was explained as some kind of double up).  When we manually open each, same problem happens.

One other thing we noticed -- one of our zone 2 ends has "sunk" about 3 inches into the ground, and was buried under some soil.  This must have happened during the winter.

Any ideas?

Graeme

Answer
Check and see if you have a leak in the system and that all the valves are clean and there is no blockage. Also, if you have a flow control know on the valves make sure that they are turned up. I'm not sure what you mean by "double up". As far as the end of zone two sinking, try digging it up and inspecting it and then bury it again in the proper location and height.