I believe that the relay is soldered into the pcb of the pulse module. Like I said, tie together pins 2 and 7 of connector E to bypass it.

until you get nearly all of the air out, the system in nearly non-functional. putting a clear hose from the "t" in metal piping on the front of the SC (in place of the 8mm black hose) and then running it into the top of the reservoir should work.

Chris