Reply by Grandpa

Thanks, Jim. I would like to do it right the first time. Yes the HF coupon has the units at $149 until the first of the year and I think those are supposed to be 2 hp units. I have the 30×40 shop then added another 20 feet to the end about 18 months ago. I use that for storage of many things not related to wood working but I would like to put the collector or collectors in that area. That would move them out of my immediate area. Should help with the noise. I would need to run the duct overhead so it is already 10 feet long to get it out of the floor then the machines would be as much as 25 feet down into the room. When they get to the wall I would penetrate that and it would literally be downhill from there. I have my saw on one side of the shop at the mid point. I have a planer and jointer about midway on the other side of the room about 10 feet from the wall. I have a lathe at the mid point on the wall opposite the tablesaw. I have a mortising machine in the corner but near the end where the collector would be. I have a scroll saw, band saw, miter saw, disc sander and drill press on the end wall near the collector. I have an oscillating sander that hasn’t found a permenant home yet. What size duct do you use (rigid I mean)? I could easily have 35 or so feet of duct on each leg of the system. I suppose you use a separator on each collector?