Thanks for the pic's on the www site Steve! The Westy's
("Joker") I have seen with tanks in Europe have the waste
water tank on the passenger side. (Propane is on the drivers)

Myself, I thought I would look through the local grocery store and
see if Rubbermaid makes something with a lid that would fit
in fronmt of the propane tank. Then make a mount so that it
can be easily snapped in and out. Just need to be big enough to
catch the occasional dishwater or toothbrushing etc.

Anyone have a setup like that?

/m