Looking aft. You can see the box fan through the outdrive hole in the transom. This worked exceptionally well when it came time to clean the dust from all of the sanding. (I used three different sanders, all electric, to smooth down the epoxy. belt, random orbital and small square vibrating. all using 40 to 60 grit paper)

I placed the fan so it was sucking from the boat and just blew the dust into the fan with an air nozzle. Buda Bing, all went overboard without having to wrestle with that big ole wet dry vac.