I haven't done a commercial wiring repair in quite a while, so looking for some process tips. New sewer line put in, cut through main and wiring. There are about 12-16 single strand wires cut. I have a feeling there was a repair there from once before, somewhere in the 5' span of the trench. Reason being, I found a few wire nuts, and on one side there is all red, other side there is all red and one white. My main concern is finding the common on the side with no white. There is an old map of how things were installed, but I don't know how precise it is, or what may have been changed. So what process should I do to figure out what is what? I thought I would start at the controller with a meter, and figure which zones have an open circuit. Then I can use my remote to activate the different open circuits, trying to figure things out at the damaged area. I would assume I can find one of the valves that has now been cut off, and use a station master at that point sending back to the area with all red wires, and hopefully figure out which is the common. I have to repair these before I can blow out the system, and we are on our third storm. Any tips would be appreciated. I know Jimmy will have some good suggestions, and I know I can call if needed as well. But I want to hopefully figure it out without being talked through. I work well with trial and error on my end.