Posted by John Dunn from Texas on Thursday, July 22, 2004 at 1:29PM :
In Reply to: Steel fuel line replacement posted by Don Williams on Thursday, July 22, 2004 at 12:47PM :
Copper isn't used in the aircraft industry for one reason-- it work hardenens and cracks. Stick with steel or aluminum, either of which can be flared with inexpensive tools.