I have one of these hooked up to my gutter and provides all the water for my flock except the few days a year that I have to deice they duck bowels with hot water. I have been thinking about adding nipples directly to it but havn't yet. I like the idea of the them on the PVC pipe instead of directly into the waterer. How is the PVC connected to the water source? I see it is connected along the metal cage to keep it from falling. But how is the part coming out of the tank connected? Can I get a better pic of the setup coming off of the tank?How big a flock??? I use a rain fed (gutter off the roof) 275 gal food grade tote, to which I've attached PVC at the base and a series of poultry watering cups. But if you only have a couple birds, and a small area reserved for them, my solution is overkill. Likewise if you have access to running water - I don't (easily) at either of my coops, unless I want to hook 275' of garden hose together.
(Photo from before the gutter was attached. The automatic dog bowl is for the goat.)
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Talk about truly automatic!!! You have it figured out.