A Friend gave me a 1hp single stage gmc dust collector. It came with no accessories. After some TLC i resurrected the collector. I mounted it to the wall of my shop and connected the outtake to a trash can. It worked fine till I notice saw dust was blowing out of the rim of the trash can. I engineered some fasteners and with the help of some door weatherproofing made the can air tight. Now no air leaks but dust collector has no suction. I ask why? Do I have to suck it up and buy the dust collection bag? or is their something I am missing?