I used to use nipple water buckets (which it looks like you can make your own, all you need is a standard bucket you'd find at a home improvement/hardware store, add the "nipples" which can also be bought separately and there you have it), however, we didn't like the idea of the chickens pecking the nipple because we thought our chickens weren't getting enough water, so we switched to having a regular large container or an old pot we don't use and we fill that up and give it to them, instead. We have to put it next to a wall and put some stones by it so it won't tip over because my chickens have a habit of lifting their feet up to scratch objects that can't be dug with their claws. Is it unhygienic? Yes. Does residue and other things fall in the water from time to time, every so often? Yes, but we do change the water several times a week.
