I have a round metal automatic water bowl in my coop. It sits in a round frame that used to hold a clay pot. Now it hangs in the rafters and swings just above the ground. One old hen started sleeping on the waterer and fouled the water every night. I decided to try and prevent her several times and ways. Finally I decided on this string design I borrowed from macramé. It seems to have worked. They can all drink from it. It is easy to dump out and clean. And, she can't get up in it to roost. Finally. ....clean water!