I got the jugs, at a flea market, for about $10. The pvc, being 3" cost about $45.
This part is screwed into the main header and the drinking cone is just dry fitted, so that it can be slipped off, if I need to move the system.
My chickens have access to open water, during the day, so, this lasts a very long time.

This part is screwed into the main header and the drinking cone is just dry fitted, so that it can be slipped off, if I need to move the system.

My chickens have access to open water, during the day, so, this lasts a very long time.