My lady friend just purchased a 1996 Alfa See Ya fifth wheel.. abiout a 30 footer. Am trying to connect a hose to the rig but can?t seem to find the direct connection. There is a tank fill on the right side in which you use a hose to fill the tank. I cannot find a fitting that you screw a hose to. I have looked all over the rig and cannot find the connection point. Does anyone know where it might be?