Rich Hampel wrote in news:290320062253232580%RhmpL33
@nospam.net:

Flat seals on filter cartridge housings are notorious 'leakers' and
must be installed 'wetted' with fuel oil so that you insure that they
seal.


I'd have been with this all the way, but he's not pulling a vacuum on the
tank as the tank is higher than the engine. If the gasket were leaking,
his bilge would have fuel in it.

I'd like to see that water test, too. Way too many boaters are too eager
to get back to the dock with guests and leave the poor thing sitting there
with half-empty tanks to breathe the water in every night. They don't want
to be bothered buying 8 gallons of fuel, so the tanks get to breathe and
the problem starts. It's so easy to prevent water in the tanks. It's not
in the fuel you buy at all.