snips

And with a t'ed vent return, (no selector valve) the return fuel will return
to the tank that has the least flow resistance, not necessarily the emptiest
tank.

snips

What did you have in mind here Bob? I cannot think of a scenario
where the fuller tank had less flow resistance than the emptier tank
except perhaps in a slip or with a clogged vent situation.
It is mostly a matter of pressure head.

Paul Lamar

The C185 (fuel injected) uses a single return/vent line up to
the tank level from the fuel sump/vapr serarator and then
it T's it to the top of both tanks.  Seems to work for them.

Bill
Long EZ builder & pilot
mechanical engineer

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