Since purchasing my boat last year, I continue to have problems with fueling up my boat. Each time, I only add about 10 gallons because that's about the time my patience runs out. It takes about 45 minutes to pump 10 gallons. If I flow it too fast, it either comes shooting back out of the fill spout or out of the vent tube on the side of the boat. I have read on other forums of people having similar issues, I was hoping that someone could give me some advice as to what is causing this issue, and how to resolve it. Any help is greatly appreciated..