Pre vs. Post impellor placement, Is there a difference?

[Rob Faucett]

Hello all - I have a JET DC-1100CK and am planning to install a PTS.  Is there a performance difference between installing the separator over a trash can (pre-impeller) vs. over the collection bag (post-impeller)?  I've seen both posted here, the "post impeller" model is definitely more compact.

Thanks
Rob

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Rob Faucett
Seattle, WA

[Rob Faucett]

Is the goal to empty the "lower bag" less often or clean the filter less often?  Or both ("pre-impeller")?

[JTJ]

Is the goal to empty the "lower bag" less often or clean the filter less often?  Or both ("pre-impeller")?

All of the above and to keep stuff out of the impeller.  I use it for floor sweeping at times, and hence pickup chips, pieces of cutoffs, and I feel it keeps it out of the impeller.  Garbage can cheaper than new impellers, although they are robust.

JT