We have nipple jugs in our cops, love them. Started with 1 gallon Apple juice jugs as a trial, hubby is going to build pvc pipe system with heated water reservior for our winters. Just moved 3 & 4 week chicks out of the house brooder to a coop broader. It literally took them two minutes to figure out the nipple jugs, they were about the first thing they checked out in their much larger quarters. This post reminded me that I want a simple pipe nipple system in our house brooder, don't know why I keep dealing with slimy crap filled little waters when the little chickens could have clean always available water.