Originally Posted by Sprinkus
Did they add an extra wire, use a spare wire or valve doubler to split the zone?
I've seen valve doublers buried straight in the ground with no valve box.
Are the valves for the split zone close together? Worse case scenario you could install an "Add-A-Zone" utilizing the good valve wire to get the zone working until you can locate and repair the wiring fault.
I doubt they used a doubler or an Add - A- Zone but honestly any thing is possible.
I will keep that in mind as I progress on Monday.