[diceman50]

I couldn't find any 3 1/2" tubing for the outlet locally and I didn't want to buy a 10 foot stick of it anyway. So, I decided to roll my own. I had some 16 gauge hot roll (I would have preferred cold finish) in the pile so that's what I used. I decided a 3" long nipple would work and a little math told me I needed an 11" x 3" piece of material. After cutting and trimming to size I rolled it up with my old Jet slip rolls. Afterwards I welded it about 2/3 of the way on the inside. Past experience told me not to weld where the hose bead is going until last. Then I used my old homemade bead roller to put a bead on it.