Just wanted to show the water set up i liked best. I do have an outdoor water system as well, but in the coop i like my latest. 1st i tried several different makes of "Nipples" which all leaked, stopped up, or decided not to work properly for reasons unknown to man....I still used the toilet filler method, using the 4" thin wall drain pipe(Home depot), but as the actual part the chickens drink from i used a piece of 3" shc40 PVC with holes cut in the top. Since water seeks its own level, it took a couple of moves to get the pipe at the correct height(30 mins). I also put a ball cut-off at the end for easy cleaning of the main pvc. I found one of the long bristled tir cleaning brushes would slide right into one of the holes on top and made for an easy clean job, Use brush, open drain valve for 2 mins, done deal. The best part is....No dribbling nipples.. The lil wooden stepping stool was for when my birds were a bit short,lol. just food for thought.