New gas tank, new hoses the whole deal. When I get the gas station, the pump is turning off constantly as if the tank is full which it most def. is not. I have no issues with it overflowing, but underflowing. I get that the pressure of the vapors cause the gas pump to turn off. What can I do to relieve that pressure? Having to half hold the gas pump for 30 minutes sucks when I'm def. trying to go in and take a quick dump.

 

My first thought would tank venting, then is the filler hose to the tank clear, no kinks or sharp bends that would cause gas to back up