Running a mechanical fuel pump and a low pressure electric pump

[jerseybigfoot]

Weather you add a electric pump or not. First relocate the pulse pump to the lower hull. the pulse line doesn't care how long it is (within reason). like to the front of the engine low. less time sucking up hill. Alternately use the electric near the fuel tank and add a return line to the tank and tee in at the existing mechanical pump make the return line smaller to give the mechanical pump a slight head pressure. This option works well if you cant find a low pressure pump.

[Rj1]

I never knew that I could move the pulse pump. It makes sense though moving it to a low point I'll try that. THANK YOU.

[Rj1]

I hooked up the electric low pressure pump on a switch. I tried running it before the vacuum pump but with out the electric pump turned on the vacuum pump was not pulling enough fuel. I bypassed the vacuum pump so it will run on the macanical pump and if I need more fuel I can hit the switch for a couple of seconds then go back to the vacuum pump.