Dang Dang Dang I used the long radius street elbow instead of the short perfect 90* like chad-O showed! That B-OTCH Rosa Klebb is shoveling as much out of this as the trough! And though there are 3 separate stations she only removes her hog head to peck anyone who tries to feed at the other two! Do not use any fitting that has any radius! Only the perfect 90 vent ell chad-O showed!