building a lawn / leaf vacum
I was thinking of building a tow behind lawn vacum. I have a couple of old furnace fans that I could use. in this application 110 volt would be ok, but if I can get a good design I would change it over to a gas engine. I'm thinking of a box trailer about 3' x 6' that I could dump when it's full. I'm not sure how I can use these fans and keep the debris out?