Posted 10/17/2020 15:07 (#8550385 - in reply to #8549043) Subject: RE: Neighbor
You could try a right-angle plenum.
Move some squares close to the fan in a large L shape.
Throw some plywood over the top with some vert. 2x4s holding up the open end of the sheets.
Put a square against the bin by the fan on the open side of the plenum to cut that reflection.