Seeking advise to conect my new Delta 50-760 Dust Collector to my TS3650. My old shop vac easily attached to the TS outlet. While trying to get my DC to connect to the TS I was dumb-founded twice. First the 4"x 2 1/2" I bought is the wrong size (id vs od). Secondly the TS's dust connection is angled downward and toward the left rear leg. Holding the 4"x 2 1/2" to the TS's dust connection, it appears to me the 4" hose would be difficult at best, to mate the two machines together. So my questions are, is the 4"x 2 1/2" available, or do I simply use a 2 1/2" coupler. Next should the 4" hose simply reduce down and attach or do I install a ellbow to compensate for the TS's angled dust connection and left rear leg.