Bruce in Alaska wrote:
Why is it that Marine Fuel Tanks, never have a Water Trap Drain, in
them like ALL Stationary Fuel Tanks do????? It would be so easy to
deal with this type of stuff if they did. Just open the valve and
slowly pump out the bottom 5% of the tank, thru a 10 Micron RaCor
and be done with it for the season. Not Rocket Science, just smart
Engineering. Simple, easy to do, and effective. You don't really even
have to have a valve on the Trap Line if you use it as a
"SightGlass/Vent" and have it plumbed up a couple of feet above the Tank
Top.


Because the USCG in all it's wisdom says that you can't have a valve
on the bottom of the tank and all tanks should be suction from the
top. Lots of other jurisdictions are o.k. with the concept of a sump
on the bottom of the tank for just this purpose

FEDERAL LAW

183.518 - Fuel tank openings

Each opening into the fuel tank must be at or above the topmost
surface of the tank.

http://www.uscgboating.org/safety/bo...el/183-518.htm

Evan Gatehouse