Hey Ben, I didn't know this is the way it actually worked, though I never
really gave it any thought. But this makes me think, that the reason for
this design was so that you only sucked low, where you were most likely to
pick up some caca, when you absolutely had to. Normal operation would have
it picking up the gas at a safer and higher level.......so I'm thinking
that this was pretty sound thinking, but it would have been much better if
they had explained it.
Miguel

> it's not exactly a reserve tank. The tap actually actually has an upper
drain for most of the fuel. When it ges to a certain level, you have to
turn
down the lever so that the secondary hole lower on the valve lets the rest
of the fuel flow.