Increased Fuel Capacity
Someone on one of the e-mail lists retrofitted outboard motor type fuel line and connectors to their fuel tank and transported extra fuel in standard outboard motor fuel tanks. When they needed to add fuel to the main tank, they just attached the can to the hose and filled it without spilling anything. I can''t remember if it was able to just drain from one tank to the other, or if some kind of pump was used. It sounds like a pretty slick idea to me.