I am on a new customers property. Five valves and a master on the side of the building. One valve in a valve box. Eleven hooked up altogether. Two eight conductor cables spliced in the valve box. I separated one going to the as yet undiscovered five valves. I get a null out of the box all the way to the building where the cable goes out to the valve box when hooked to that open wire. When I hook it going the other way I get a null for about twenty feet and then nothing. I know the zones all work and we are trying to locate these valves for future reference. We are trying to narrow it down. Norwegian blood resulting in irrigation retardation as my wife says. Or not operating tools correctly. John Hooked up my Krik-it at the controller (inside) and it also was unable to help me.