I am considering converting my single stage dust collector to a 2 stage but I am trying to conserve as much space as possible. One thought I had was to use a filter that is open at both ends and mount it horizontally up against the ceiling instead of vertically taking up a bunch of accessible wall space. Then I would put a bag at the end so I could see if any chips got blown in there, but I'm not sure that would be all that useful.
Has anyone else ever mounted their filter horizontally instead of vertically? How did it work out for you?