Slow Fueling

[Halfhitch]

I have reservations about removing the vent hose at the tank. While refueling, gas vapors will exit the tank through the vent fitting and can accumulate in the bilge. Although, there should not be any spark sources in the bilge, I wouldn't want find out I made a bad assumption. Instead a temporary vent hose might possibly be attached to the tank and routed up out of the bilge.

I agree that there are dangers involved with fuel vapors in the bilge of boats, especially since some electric components are wired direct so turning off the battery switches don't power-down the boat. Everyone should, before opening their fuel tank, remove the battery ground wires/cables at the battery before proceeding.

And of course, no shop vacs, unsealed flashlights, fans and such.

 

[DennisG01]

I have reservations about removing the vent hose at the tank. While refueling, gas vapors will exit the tank through the vent fitting and can accumulate in the bilge. Although, there should not be any spark sources in the bilge, I wouldn't want find out I made a bad assumption. Instead a temporary vent hose might possibly be attached to the tank and routed up out of the bilge.

I mentioned attaching a new hose to the vent, albeit I only focused on "spitting" fuel. Absolutely - I agree - use the hose to eliminate fuel vapors which are a very real thing. Route the hose over the gunwale.

 

[Last Stop]

Sorted!!

Follow steps 1 to 5 as per Grady White (see attached)
If step 3 indicates a vent issue contact the tank manufacturer. (See attached). They sent me the ‘kit’ to add a second vent outlet on the tank and T into the existing vent line. I also changed the valve at the vent outlet.
Im now able to fill the tank in 15 minutes.

 

[seasick]

I didn't expect that. Nice work. I learned something new!

 

[Last Stop]

Tank needs to be emptied. Tank pumped with an inert gas to avoid any possible explosion prior to drilling. Hope this helps anyone with the same issue. The marine pump ‘attendant’ tell me it’s not an unusual problem with a variety of boats.

 

[Halfhitch]

So, was it the vent hose or the fill hose check valve flapper mentioned in the letter that was your problem?

 

[Last Stop]

It was the vent valve located onside the tank which was faulty. The tank manufacturer supplied the complete kit to install a second vent outlet pipe without the ‘internal’ valve.

 

[DennisG01]

It was the vent valve located onside the tank which was faulty. The tank manufacturer supplied the complete kit to install a second vent outlet pipe without the ‘internal’ valve.

Incorrect. The problem was the guy sitting behind a desk at the EPA that has never boated a day in his life but insists he knows what is best.

So now there was not only the carbon canister system but also a check valve in the fill hose and another check valve in the vent fitting? Ridiculous. It's strange, though, that not all boat manufacturers are using these extra things.

Glad to hear you got it fixed, though.