If you want your filters to not clog up in a short amount of time, then you need a two stage system. Two stage is the only way to go as far as I'm concerned. It is very cheap to do, and can be done to any dust collector. I picked up a 55 gallon drum from a friend for $5.00, then bought a couple 90 degree 4" dust collection fittings and installed in them in the drum lid. I made a baffle and I was done. I have about $25.00 in the two stage addition. Now I get almost zero dust in my actual dust collector bags and my filters have yet to accumulate any dust that needs to be cleaned. I used to have to clean my filters once a day. I'll never run a single stage system every again, now that I have tried a two stage system.
Mike, how did you do your baffle? My can doesn't fill up very full, but my 2hp DC sure does. The DC pulls the dust right through my 55gal separator. I don't have a baffle and suspect that's the problem.
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