I am now using a Hoover GUV with a separator. It works fine for a while.
The only stuff that gets by the separator is the fine dust, and that clogs
the filter pretty fast.
I see a 12a househole cyclone vacuum on ebay. I am thinking (hoping) that
the fine dust would settle out in the cyclone, so I will have a good system
forever. Anyone try this?
Actually, the Dyson (at least some models) does have a final-stage
hepa-filter. It'd be interesting to see how it does with drywall dust.
I suspect the current best bet for fine dust would be a shop-vac sized
cyclone (either the Oneida or the Clearvue) then a shopvac with a
Cleanstream (water-washable, HEPA) filter.
I've had a Cleanstream on my Ridgid shop-vac for a couple years now, and
really like it. It clogs up with lots of drywall dust but the exhaust
air stays clean.
I'll second that - I have a HEPA (Cleanstream IIRC) on my Ridgid
shopvac also, and it filters VERY well. A lot of fine dust builds up
directly on the filter, and I usually just shake it out inside a
garbage bag when I start noticing a suction reduction. (I made a
rhyme...) Once in a while I rinse it under the tap and kind of unfold
each pleat to let it really clean up.
Re. the Oneida vs. Clearvue mini cyclones, have you taken a close look
at either one? Do you think they're much different?
The Clearvue uses 2.5" ports in and out. The Oneida has a 1.5" intake
port and a 2" output port. If you've already got a shopvac that uses
2.5" hoses (Ridgid, Craftsman, Shop-vac, etc.), then the Clearvue is
more convenient as you can use all your accessories.
The Oneida looks more "professional", and the DIY version of the Oneida
is actually cheaper than the Clearvue.
I have no idea how they compare with respect to separation performance.
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