Hi there, Ok. We've got a sprinkler system with three separate zones set up, but only the first two are used (last one is an area that we don't need to water). The system was installed before we bought the house and haven't had any trouble in the last 2.5 years we've been here. A few days ago, zone 1 stopped working altogether. Just nothing happened, but zone 2 kept working fine. I didn't understand how the system was set up, but now I think I've figured out the basics -- and the problem. But I'...
