Thanks for the reply's on the cap types. I like the one Joe sent I will look into that one.
HOW TO VENT the header tank? My thinking (although might be stupid) is that if I vent the header tank out the top then if while I am transferring fuel from the wing tanks and get distracted and forget to turn off the pump I will notice fuel on the windscreen. I really don't want to put a switch in the tank for a warning light but if that is the way to do it then..... Just looking the the K.I.S.S. system. Steve Phillabaum KR2Swide Shorter, Alabama 334-740-0066