I have found an easy and very effective way to keep my rigid shopvac filter clean. I had some left over Orek filter bags so I cut them seven inches from the top and slipped them over the pleated filter, tucking in the tops of the
bag to keep dust from leaking out. Well after three weeks the filter is 90% dust free, all I do is tap the bag and the dust fall off easily.I do not remove the bag. Unlike panty hose that does not do a good job the filter bag does its job. The Orek bags are lined and the filtering is great. The diameter is perfect to slip over, with encouragement it fits snugly.
I am sure that this system has been used by many other LJ’s so consider this a refresher.
-- honing my craft one mistake at a time.