I have rudimentary experiences using a drill, and this was such a breeze to install. Very pleasantly surprised! Instructions were clear, concise, and very cheerfully colored too! From start to finish, 10 minutes max (including 1 mishap - I first tried drilling an old plastic applesauce bottle only to realize the wall is undulating and so the plastic washer won’t maintain a watertight seal. So I scrounged around and found an old salsa container I was using to hold lentils).
It did not leak first try, and hasn’t for the day it’s been in use. I can refill the old salsa container easily without washing every day. I do have to keep the lid on loosely, as the water won’t come out of the drinking cup if there’s an airtight seal up top.
The training instructions were perfect for my three hens: “remove all other water sources. Show one hen, preferably the queen, and she will tell the others.” (My paraphrase) My queen chicken is a little too nervous for me to trust any training I might do with her, so I went with my lowest-ranked but calmest and most curious chicken, and she picked it up immediately. Then she shared w her sister Orpington, and then I knew queen Brahma hen would figure it out quite quick.
I bought these assuming I couldn’t use them in winter (I live in coastal Maine), but they look and feel sturdy enough that I will try it on a metal or heat-resistant plastic container inside a heated dog water bowl. I will update in winter 2019-2020!