I put these in my coop with the 4 nipples on a PVC pipe attached to a 5 gallon bucket, I did press the nipple a few times for them, but within an hour my cochin
was pecking at it and drinking (the nipples are red, and chickens are curious, they naturally pecked at it and found out water comes out!).

:cd
Just some advice, I can't detach the bucket from the PVC pipe for cleaning, which is a pain, so try and make it so the bucket can detach for easier cleaning.(or easier yet, just put the nipples on the bottom of the pail!) I do have a valve on the end of the pipe, so for cleaning I have to run vinegar water through several time, and hand swab the bucket, even tho the water stays clean, eventually esp in the summer it can start to get slimey or milky, and cleaning it is a must at least weekly then.
I do use it all year long, in the winter I have heat tape wrapped around the pvc pipe and pail connected to a thermostat at the outlet, and so far only only one day (-15 F) did it get ice in the bucket.
I plan on using this on a smaller scale (maybe a 3 gallon pail with 2 nipples on the botton of the pail) for when I incubate, it will be wonderful for the baby chicks to have fresh water, that is the worst thing when raising babies, is trying to keep the water clean, or trying to make sure they stay out of it!