Since you mention "Portable" I would recommend one of the Tempo tanks,
approved for fuel.. Not exactly designed for portability but the offer a
wide range of shapes.

I use a 16 gal version for my gravity tank for my galley stove and I have
also installed a valve and small filter so I can use it to gravity prime my
engine or generator.

Air entrapment will be a problem in any tank you connect and disconnect..
Work out some form of connection with a bleeder so you can expel the air
before it can get into the engine fuel system.

You will also have to provide for a fuel return line for most diesel systems
(Volvo MD1B, 2B & 3B being the exception).

All that said, I don't see where the condensation is all that much of a
problem, especially if you keep your tanks near full. And have a good water
separator..

My opinion and experience, FWIW.

Steve
s/v Good Intentions


"Courtney Thomas" wrote in message
...
I want to get some sort of portable fuel [diesel] tank for daily/weekend
use rather than only having the built-in tank [for voyaging] so that I can
avoid fuel contamination problems due to condensation, etc..

What tank do you recommend and what setup regarding connecting the day
tank to the engine for easy quick connect/disconnect ?

Gratefully,
Courtney
--
s/v Mutiny
Rhodes Bounty II
lying Oriental, NC
WDB5619