"tr" wrote in message
ups.com...
I have a 2 hp Jet dust collector...my first...there are two 4" intakes
on the unit....is it best to run 4" hose around the small shop rather
than 3"...etc...and when dropping to a tool...should you keep using
mostly 4"...or is it ok to drop down to 3" or 2 1/2" at the split off
fitting to the stationary tool ?

Thanks, TR

Stick with 4". You can either run two circuits with 4" all around, or run a
5" main truck and 4" drops for each tool. That is usually best determined
by your shop layout. If you take the cover off the inlet, instead of two 4"
you can run one 5" or 6" line, I forget which right now.