Fix-It Chick: Properly vent a sink ‘S’ trap News. Apr 2, 2016 - 12:00am. Linda Cottin. ... Step 11: Install a female-threaded coupling onto the top of the pipe.

Afterwards, the vent area is turned outward by applying light pressure to the chick’s cloaca. A trained chicken sexer will be able to tell if a chick has a slight bump that signals it is a male.