Weve been attempting to troubleshoot this situation. Dropped the tank this weekend and found that the hose just hanging from the top of the tank was connected to a rollover safety vent valve. The valve looks all gummed up and seems to be stuck. Still makes very little sense to me. That would explain the drip of fuel if the pressure is forcing fuel through it but seems that if it was stuck open it would be constantly venting and there would be no pressure. All other lines, valves, etc look good. Nevertheless I ordered a new valve. We will see if that fixes the issue......