I have not used the tubing bender yet so this is my first try at it. It is not perfect but I’m pleased with the out come. The vent goes from the top of the tank and cross to the wings loop over head and out to the bottom of the fuselage. I added a tee on the down pipe for the one way valve to get air if the out side source was to get plugged. I mixed 5 minute epoxy with flox to hold in place and then radiuses with milled fiber that was mixed for the inlet vent and drain bleeder.