We are pretty excited about watering the birds without having to go into the coop. But the bulkhead fitting into the bucket could be used for a rain barrel too, or whatever you want. The buckets should have a lid so leaves and debris don't go in. Here are some pictures of the buckets we put together for our two watering set ups. The bucket we are using is a food grade bucket with no labels. Those are not easy to find unless you order from Azure standards or somewhere else like them. I like the tight fitting lid too. We plan on cutting a small hole in the lid to let the rainwater in and hopefully keep most of the debris out. The nipple drinkers can get plugged with any debris in water.