I like your fuel pump words ;)
We've installed 2 extra tanks on our RV and have installed (but not taken live quite yet) electric fuel pumps on each. And each is controlled by 2 toggle switches on the dash - a not-so-complicated way to make sure only one pump is activated at any one time. I like toggle switches, too :B
Both toggles have 3 positions. One toggle either selects the other toggle or the pump on the very back tank - the generator tank - with the middle position being off. The other toggle selects the pump on the front tank, the other toggle and the pump on the mid/back tank (top to bottom).
Everything's installed for that system except the mid/back tank. Which we just finished making new hangers for (the old ones wouldn't work where we have to install it) and will install this weekend. I've got a block-off plate with gasket and bolts to remove the mechanical pump altogether, too.
Oh, and we've got a Holley fuel pressure regulator that's going into that system up by the motor, too. So no matter what, we've always got the same fuel pressure to the engine.
