some fuel tank threads, not exactly on target, but might be helpful. for one thing, I dont know if there is a bladder approved for gasoline
http://www.sailinganarchy.com/forums/index.php?showtopic=32933&hl=fuel+tank http://www.sailinganarchy.com/forums/index.php?showtopic=57438&hl=fuel+tank there are probably some better threads, but the SA search engine is notoriously poor. tf
