I use the screw-in types, but I still put a little silicone caulk on the threads and just at the "larger" part that stays outside of the jug/bottle/PVC pipe. These are one piece; you can't assemble or disassemble the nipples, although they obviously have 3 parts: 2 metal bits and one plastic housing. Got 'em from FarmTek.
I've got a milk jug waterer with one nipple, a 5 gallon bucket waterer with 3 nipples, a PVC pipe from a 5 gal bucket with 4 nipples, and a plastic pitcher with one nipple (that one is for the brooder).
They all work great, and the chickens learn to use them very quickly.
I've got a milk jug waterer with one nipple, a 5 gallon bucket waterer with 3 nipples, a PVC pipe from a 5 gal bucket with 4 nipples, and a plastic pitcher with one nipple (that one is for the brooder).
They all work great, and the chickens learn to use them very quickly.