Hello everyone. I recently replaced all 3 valves on my in ground system. It hadn't been used for several years. They were Toro, and all leaked. Anyway I replaced them with rainbird. The rainbird valves only have two wires coming out of the head. The old toros had three wires coming out of the heads. The box is about 15 years old, and worked fine. I believe the white wire is the common line. This had originally been wired as a six zone box, but the backyard three where removed because a pool was installed. The installer did plug the three that weren't in use, and remove the three zones. Anyone able to help out with this. The guy that installed it, moved to FLA. and stated his business there. Thanks for any help. I emailed Toro, but they haven't gotten back to me.