Connecting multiple master valves

  1. Two MV: As I understand it from articles such as the following, no:
    Master Valve only on specific zones
  2. Power failure: maybe through the app or webhook. Wifi Loss:
    https://support.rachio.com/hc/en-us/articles/115010378927-What-if-my-controller-goes-offline-
  3. Zone settings: see previous article
  4. Bad solenoid/wire or amps: It sure would be cool to see how many amps a particular zone is drawing, but not at this time from what I have seen. I believe it will cause an error (zone fault, see article below) that is displayed if too many amps. It appears all is working if no amps, but no water is coming out of the sprinklers. I could be wrong, but it would seem that how many amps a zone is drawing is at least partially available (not made visible anywhere though) to detect a fault.
    https://support.rachio.com/hc/en-us/articles/115010378587-Zone-fault-detection-
  5. What are you replacing?