[Setec Astronomy]

I only used my '76 manual because back in those days the manuals actually explained how the systems worked. And no I don't agree that an electric centrifugal pump is different than an engine-mounted diapraghm pump, you still won't pump anything out of the tank if you don't vent the ullage. Even those college kids who punch a hole in their pressurized beer can have to open the tab before they try to drown themselves. And don't look at me on the half-tank stuff, as previously mentioned I run mine down to nothing then fill it all the way back up. Anyway, that's enough on this subject.