How to install an in-line bilge blower

[Boysie]

http://www.ehow.com/how_4725772_install-inline-boat-bilge-blower.html

[wildrj]

I've never seen an installation with an inlet vent- they normally just extract the air already coming into the engine bay. Might be worthwhile if the fuel system air intake breathes from outside the engine bay.
In a commercial application, all intake vents would also need to be shuttered to assist smothering an engine fire.