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Posted on Disappointed with my Onieda Super Dust deputy

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Mr Jones

13 posts in 3040 days

#1 posted 06-26-2018 01:43 AM

It may be that you need some back pressure from the filter/bag. I’ve never run one with just the cyclone. I know that my SDD on my Harbor Freight DC works flawlessly and I think I may never have to clean or replace my filter again.

- shipwright

Shipwright, I never intended to run it without any filter as i always planned to recycle the air back into the shop. However in regards to back pressure, the filter would certainly add some. I always assumed the ideal ratio was to match the cfm rating of the filters to the blower to eliminate as much back pressure as possible?

I agree with shipwright. You probably need the back pressure. Also make sure there are no air leaks around SDD; that ll also interfere with the cyclone effect to get all the dust into the bin. The hose connecting to the bin could also be a little too long. The SSD works by creating the cyclone effect to shove the dust down into the bin but with your setup, there doesn t seem to be much room to create that effect before the suction from your DC grabs hold of the dust. Just some thoughts to consider or try. Mine has also been very effective with very little going into the filter thus far.

- Rayne

I made the hose connecting to the bin long because i wanted to have the bin on the floor and the collector as high as possible. Perhaps i can make a shelf to bring the bin closer towards the cyclone.

Thanks for the suggestions guys!

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