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Message
There is a third option.
Seal the vent when not flying.
I would not
recommend this for RV wing tanks. When I was leak testing my RV-8 tanks, I
put a few gallons of gas in them, and left them in various positions
to test all the seams. I sealed up all the openings
when I did this, and quickly found out that it will build a lot of
pressure. I recall walking out in the garage and looking in horror at my
tank skins bulging outward. Fortunately, I rescued them before any
harm could be done. I won't be doing
that again.
Makes me
wonder about cars. Aren't those tanks sealed, or at least sealed to
some pressure?
Rusty (Might
be able to crank rev-4 next weekend, mill skills
permitting)
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