Sounds to me that you valve for that zone may be stuck. You might be able to verify by unplugging Rachio to see if it stops. Usually a cleaning (hopefully not replacing parts or the whole valve) of the valve will take care of it.
Sounds to me that you valve for that zone may be stuck. You might be able to verify by unplugging Rachio to see if it stops. Usually a cleaning (hopefully not replacing parts or the whole valve) of the valve will take care of it.