I second Jeffrey use of trash can, however mine was a plastic one with a top that turned to lock in place. Put a plastic bag inside to easy emptying and made a Thein baffle with 4" pvc elbow to get cyclone effect. Catches all but sanding dust witch is caught in wynn filter. Works great.
Jeffrey,
The manometer doesn't seem to do much. See old post here
http://www.sawmillcreek.org/showthre...ion&highlight=