I purchased the dust deputy,,, and, I am SHOCKED how much vacuum is lost due to it.
Yes, it removes the dust, but, about half the suction power is used removing the dirt.
For specific things, sanding, etc,, it is great.
sweeping the dirty shop takes forever, because of the lost vacuum.
The vacuum is not lost due to leaks,, the vacuum simply has half the velocity at the pickup point.
Part of the problem is all the extra hose,,,
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