I picked up my PVC D-2729 10' pipe for about $20 in GA from a plumbing supply store after calling around. $15 is fantastic! Neither Lowe's nor HD had the thin wall, only the heavier (and more expensive) thick wall Sched 40 pipe. The fittings for the sewer and drain (thin wall):
6" 45° $7.99
6" 90° $10.99 (I know i'm supposed to use two 45° fittings, but i'm going to use 2x45° coming off the main and then try the 90° from the ceiling to the 6" pipe that runs down the wall to the blast gate)
6" Wye $22.00
6" Cap $5.22
I'm getting very close to finishing my system and can't wait to have it working.
Dave