Hi! I got a few nipples from FarmTek and made 2 of the 5 gallon waterers. They are just the plain push in variety. I have been thrilled with them and have since ordered more! I made a smaller waterer for the brooder, and hung several more smaller waterers all around the run. They don't seem to leak, or if they do, it isn't much. The water stays clean and is easy to keep cool in the summer. I just put a frozen 2 ltr bottle of water in each bucket every afternoon and the water stays cool until the next afternoon. In winter (I'm in the south, so winter is more entertainment than a true winter), only the water on the top freezes and the bottom stays liquid so I haven't needed a heater of any kind. Good luck!