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@Bob: IM S6 posted:..
...I've been looking into some sort of booster fan arrangement, as you say...
Bob, suppose you already know about the fans for venting marine bilges? Designed for 'in-line' installation in existing duct hoses (usually 3" or 4" diam), water resistant, about the right flow-rate for this application, low power draw, and 12V.
Search Amazon or West Marine for 'bilge blower'.
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