Wow, thank you for sharing! I never knew it had an actual name. I'll have Google the feeder. Maybe pick one of those up. A couple of the farm store near me do stock them. At least the waterer.
As for the water trough. It's mostly on very hot days. When the horses have been drinking a lot and the waterline has dropped well below the rim. When puddles and shallower sources of water are dried up. I've considered building a ramp or something but that hasn't happened yet. I keep a dog bowl filled with water in the barn all year round for birds. Hoping they'll just all use that. I'll still catch hens standing on the rim of the horse trough leaning in for water when the full dog bowl is about 6" away and also has fresh clean water in it . I don't get it.
It may be cooler to stand on the edge of the trough. When I put a cinder block in the baby pool it stayed cooler and I had hens that liked to stand on it.