Hi,
I think I am cursed. I had to run a new line for two of my sprinkler valves as I had to move them and it was easier just to run new wire. The sit together in the same hand hole. I am having problems with one of the valves as it goes on when any of the other zones is active. I have replaced the valve once, the selenoid twice (showing solid OHM rating both times. I have the senenoid screwed down nearly all the way. It is the same zone (8) every time. I took a common wire and two others from the new line one went to each valve and the other to the far left common post. The valves, of course, are wired with one from the zone, and the other to the common wire that goes back to the far left C.  When the zone is off it is showing it is throwing about 2 volts AC. I suspect that is normal, or is it a sign of something else? 

I have a Spark 16 and it has been in operation less than a month. 
Thanks,
Kirk