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What is the best method for plumbing the wing tanks to the header??  I
assume that the manual calls for each tank to provide fuel to a separate
Facet pump, and the pumps then plumb directly into the header, correct?  If
this is the case, then a failure of a single pump would mean that you
couldn't pump from that tank... not a good thing.  Would it not make some
sense to put a crossover valve into the system (before the transfer pumps)
which could attach the two tanks together allowing their fuel levels to
equalize and the remaining pump to deliver fuel from both tanks at once?
(I know someone posted a message recently about the crossover, but I
haven't been able to locate it, sorry.)  Any input will be greatly
appreciated.

   <Marv>