>    I was planning on cutting the panel so that you can see the fuel
> transfer lines to the header tank.  Without doing that, how do you know
> when the wing tanks are dry??  I doubt you can hear any change in the
> transfer pumps?  Appreciate any practical info, as I would prefer to
> leave this out of the panel.


Hello D,

I put low level float switches in my wing tanks. A "wing low" light is
illuminated by the power from the transfer pump running through the float
switch. When the tank is empty (or very nearly so), I will get the light if
the pump is on. Once I turn the transfer pump off, the light goes out. The
light warns you only if you're trying to pump from an empty wing. The full
schematic (missing two isolation diodes) of my fuel management system is in
the archives.

Bill
harrelson@erols.com
N5ZQ  LNC2  O-320  VA42  Fredericksburg, VA