I emptied my HF dust collector and now I need to clean the filter bag. I shook it out but there still seems to be a lot of dust in it. Those of you who have this collector, how do you clean the bag? I know you will be suggesting that I replace it with the pleated filter but I can't right now. I was thinking of throwing it in the washer but not sure if that will ruin it or not. The manual doesn't say anything about this subject.