overflow plumbing

[lockrookie]

with head loss/ 90 degree turns and t's as well im plumbing the return in an unconventional manner i will be lucky to get 1300 gph out of the pump maybe less basically im doubling what i currently running on a 90g tank. plus using the return to reduce amount of powerheads inside tank if i can get enough flow throughout the tank without adding power heads i will be a very happy camper. my biggest concern at this time is the overflow plumbing and i think i better return the parts i picked up and go bigger.. ill keep the bulkheads i bought for another project..... but ill return the shedule 40 stuff on tuesday