Hi All,I wonder if anyone can tell me if an electric fuel pump fails ?will it still flow fuel.My setup is in a Wasp with a 912 100hp.Was thinking of putting a facet posi flow or interrupter type back up pump(max press 4psi).The Rotax manual does show a bypass around a booster pump but this complicates the plumbing if its not needed with these pumps (does have a cube facet at present,but its very noisy) Many Thxs