Chris Friesen wrote:

How long have you been running it like that? On Bill Pentz' site he
discusses the cartridge filters on single-stage collectors. The basic
result was that they work for a while but then get clogged up and/or
damaged by debris and end up performing worse.

My Jet seems to do that, but the "flapper" does a noticeable job of
returning things to good order. A significant amount of debris falls
down into the bottom bag as I rotate the flapper handle.

My filter is ~ 15 months old, so I can't comment on how long it will last.