I have a doubler that is giving me trouble. It won't kick on either zone. The valve next to it is OK, three valves in the box, so i know the common is alright. I get an open line on the ohms reading at the clock when the doubler is connnected (both stations). Turn off time and remove the connectors at the double, untangle the wires and fire each valve with the station master, they all come on. I remove the doubler and take a volt reading on the station master. I get 20 volts and some change. I connect the station master to the doubler and fire it. I check from the common to the valve wire that is hot, I get 11 volts. I know I should check from the clock, but it's way back there. The question is: Should I get a standard ohm reading for the valve at the clock on the leg that is doubled? Is 11 volts what the doubler should be reading with the station master porering it? I wired the common and station wire together and get 2.6 ohms, is that about right? Past experience tells me I should be somewhere around 5.