My vent is part of the deck fill. It's on the stern up top on the port side. 5/8 hose on top of the 1 1/2 fill hose. I checked and there were no sharp bends. I took the vent hose off at the tank and blew through it. Seemed like it was hard to blow at first then it freed up. I was getting some back flow - then I realized that the damn cap was on the fill. I took the cap off and blew it out good - did not seem like anything was blocking it.
I have to believe it has something to do with the angle of the nozzle in the fill. When I go back, I'll try to make sure I push it way down - I thought maybe that backing it out would make it fill better (like in a car), but from the looks of the fill hose, I bet that would make it worse.
Either way, the vent is not plugged. So if it doesn't fill next time, it has to be the angle of the boat or the nozzle.
Thanks for all the great suggestions.
Jim
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