Let's start in the bottom of the gallon jug. There is a piece of fuel tubing about 8 inches long that goes from the bottom of your gallon jug to the underside of the cap of the jug. On the top side of the cap there is a piece of tubing (maybe 10 inches long) that connects the top of the jug to the fuel inlet of your pump. then the long coiled tubing goes from the pump outlet to a "probe" or simply a piece of brass tubing. It is this probe that fills the tank into the fuel line of the tank (you disconnect the fuel tubing between the tank and carb and fuel there.)

I am also from St. Louis and fly at Buder park in fenton. where do you intend to fly?