Thanks - that is an interesting idea of just treating the symptom. That will
certainly save the aggravation and certainly a lot cheaper than re-locating
the vent outlets on the tanks.

Dave


"Capt John" wrote in message
...
On Nov 27, 12:22 pm, "Dave Isherwood" wrote:
Boat is a Carver 530 Voyager and with two vents on either side. When I
fill
(even using a normal slow pump) I get diesel fuel venting. Yesterday I
had
to add 200 gal. to each side and venting started after I'd put in 10
gal.
I'm at a lose to understand why this is happening. Foaming seems unlikely
as
it would need to have filled 50% of the tank!

Any ideas of what is going on? Or even better a simple remedy that works!

Thanks,

Dave

Your vent's in the fuel tank aren't positioned properly, or their too
small. One easy thing you can do is disconnect the hoses from the
fittings on the hull and run the lines into the cockpit. Now I know
what your going to say, then I'll be spilling fuel into the cockpit.
But If you set it up so you can place a small bucked under it, or with
a hose attached to the end of the vent line place the hose into a
small fuel tank, you will catch the fuel spill. Toss it back into the
fuel tank when your done, or later on when your done (the slow rate of
flow when you pour that much fuel shouldn't cause any fuel to spill).
It doesn't get much cheaper than that. My boat's set up that way.

John