What's a common wire in a sprinkler system?
It's the single connection that goes between all of the sprinkler valves and their sprinkler timer control box.
If you need a common wire, or any part of your sprinkler system repaired, call Sprinkler Master in Littleton, Colorado today!
Or, learn more about how common wires work at https://www.coloradosprinklermaster.com/what-is-a-common-wire/