As was indicated earlier the hidden inlet is 5". It would be possible
to enlarge the inlet, and I believe there is a web page talking about
someone doing it.
A photo of the impeller is here:
This past weekend I ran the collector extensively with a power monitor
hooked up to it.
Max amps I could draw was 8.45 unless it was starting up, which can hit
16+ for an instant. With 20' of flexible hose, the amps barely
In comparison I have a grizzley 2hp motor on my Jet CS saw. While
cutting 45 degree bevels in plywood for french cleats I observed amp
usage in the 16's nominally, and over 20 just before stall out.
Also running the collector for 90 minutes used about .7 kwH. Which
around here is about $.04. So one could use it connected to a dust
filter without going broke.
There is room in the impellar housing for a larger impellar, and
looking at Jet's parts diagrams they are not terrible expensive.
I upgraded mine with the Wein cartridge.