We started with a 5 gallon vat fitted with the nipple/waterer thingies, and the chickens never really seemed to like them much. Any time there were water puddles in the yard, like after a rain, they really seemed to prefer drinking from those. Seemed much more natural and easy for the chickens. When the first winter was approaching we had to figure out a way to keep the water from freezing. We bought a 1-gallon heated dog water dish, and never looked back! We placed it on a large concrete block to help keep it cleaner. It has worked great for 4 years now, and the chickens seem to love drinking from it much more than the nipples. We just unplug it in the summer and use it year-round. I would highly recommend it!