We replaced two of the fuel filters about 30 hours ago. They seem to be stopping up again. When running down the river yesterday it cut out completely. Today I took it back to the river to see if it would do the same thing, and it did. Is this normal for the filters? Is there anything that I can do different to get more life out of these filters? I dont want to have to spend $120 on fuel filters, every 30 hours. We are buying our gas from Chevron and it is not setting up for any amount of time. I go to the river just about every weekend if not several days a week.