I bought an older home with an existing lake-feed 2-zone irrigation system. The system uses manual valves near the 220v 1.5 hp pump, no zone controller. I want to replace the manual valves with electric valves, and add a controller.
So I need both 220v and 110v at the lake. An existing 10 gauge cable (white, black, and ground) is in place underground to the lake and protected by a 2-pole 15 amp breaker. Note: (My older breaker box has only has ground bar, no neutral bar…
Can I safely tie into one side of the line for the 110v to power the controller?