This weekend was my first trip with the unit where we didn't have water on site. So on check in I was filling up the fresh tank and expected the water to run out the fill when it was full. Never did. Instead water started pouring out under the trailer( imagine my horror) my initial thought was busted line somewhere. Thankfully not the case. My fresh tank has a 90 elbow on the side of the tank with a barbed end level with the top of the tank. Yet no hose attached to the fitting. My guess is that this is suppose be the vent line that comes out to the screen near the water fill but the factory forgot to install the hose. .????