Hello All, See below photos. I have had mushrooms in my yard for the past 3 years due to over watering on my part. I just installed an irrigation system and this zone gets sunlight most of the day. I water for 10 minutes a day, three times a week. It has rain delay on the controller. I feel as if I am not over watering it but could there be a possibility that the fungus disease or whatever has carried over from last year? Only one zone in my yard has this issue. [ATTACH]66001[/ATTACH] [ATTACH]66002[/ATTACH] How would I eradicate these?

I discovered tonight that my sprinkler system is no longer watering. I checked the controller (Hunter Pro-C) with a voltmeter and there is definitely ~26 volts flowing for each zone. I tried to fire each zone manually from the controller but no action on any of them. I wasn't the home's owner when the system was installed, but I found one of the valves in the yard (in the dark) and manually turned the solenoid and the sprinklers in that zone (4) began to fire. I went ahead and opened the waterproof wire nuts and set the controller to fire that zone. The multimeter only showed .5 volts. At this point, I'm thinking that I've got a cut wire somewhere? I'm guessing it would have to be the common since theoretically each zone has it's own other wire. Otherwise, wouldn't some of the zones work? Some questions: 1. Could a bad solenoid on Zone 1 cause all the other Zones to fail? Based on the wiring I saw, I'm guessing not... 2. Do the zones typically share a single run of common? If so, does that mean that if there's a cut wire it must be between the controller and zone 1 (or else some of the other zones would run)? 3. Any suggestions on how to find the wire/cut or my other valves (for a guy who 5 hours ago knew little to nothing about sprinkler systems)? 4. How deep is the wire usually run? Any common patterns for where it's run? Should I expect it to run close to the foundation? Wondering if I nicked a wire while doing some landscaping in a flowerbed right up against the house. 5. Is it strange that when I set the controller to manually run zone 1, I see voltage, not just for common and zone 1, but also common and each of the other zones? For some reason, I was only expecting to see voltage for the zone that's active. When I turn the controller to "Off", all the zones go to 0 volts.