Originally Posted by Terry Metro Lawn
Ed, you should be able to hook the lockoff to the 12V from the OEM fuel pump. That should fix the battery problem.
Don't understand.....fuel pump is vac operated and no longer used. The propane switch run on the circuit that the ole fuel cutoff selenoid used. So to kill that you either shut off the key or put something in the circuit that would automatically cut it off like a oil pressure switch? I must be missing your point.