Diesel Deckplate ERUPTION
i have a similar problem on my boat. first and most obvious, switch to the low speed diesel pump at the dock if you havent already. I think the problem is with the pumping mechanism and that the tank has no where to vent to except up the fill pipe. I keep one of those 3M absorbant pads around and pump the fuel as slow as I can get away with and take frequent breaks while filling.