I have a 2003 Triton 173 Sport (aluminum bass boat trailered)with an eighteen gallon tank. When I try to gas up I can only get a second click out of the pump. Thus it takes about five minutes to pump a gallon. The last time fueling up, after two gallons the hose filled and wouldn't let me pump any more with out spilling gas all over the place. Very frustrating. I've tried a five gallon can with no better luck. Any suggestions would be greatly appreciated.