Don W wrote:

[...bilge ventilator...]

I suppose in a bind you could use a garden hose, and compressed air from a
bottled source such as a
scuba tank. Stick one end of the garden hose into the lowest point of the
boat, and the other over
the side. Close up all the hatches and put towels or plastic sheeting
over any cracks around the
boards, etc. Now crack open that scuba bottle, and the pressure inside
the boat should drive the heavier gas out through the garden hose.

Use the priciple of an water jet pump, but in this case change the waterjet
into an airjet. Not sure how one would improvise this, but it probably will
work better than trying to pressurize a whole boat. The simplest solution
would be to just open the locker or blige and vetilate it a bit. Diffusion
will do it's wonders.
--
vriendelijke groeten/kind regards,

Jelle

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