I have a fuel computer in my exp. cub and for years have been using just the manual engine driven fuel pump. I recently plumbed in a Facet elec fuel pump model #FCT480564 between the fuel selector switch and the gascolator for a back up. Trouble is the manual pump won't draw fuel through the elec pump if it is turned off. Not what I wanted. Somewhere I read that Maule used a Facet pump in their setup. Any one now how they have it tied into their system??? Question #2: can the engine driven pump fuel through the elec pump if it is turned off?? Thanks Tim