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Some suggestions from seeing the latest photos.
I use a 1-gal waterer and it holds enough for 9 birds for at least a day. The widest diameter is about 8 inches and may fit through your hatch.
The chickens will be kicking up bedding material. Elevate the waterer and feeder to keep them clean. They can go as high as chicken shoulder.
When drinking, chickens will shake and scatter water droplets. Some distance between the waterer and feeder would be prudent. A wall mount PVC pipe or wooden trough feeder on the far wall from the nests and the waterer next to the nests should be sufficient space.
Some suggestions from seeing the latest photos.
I use a 1-gal waterer and it holds enough for 9 birds for at least a day. The widest diameter is about 8 inches and may fit through your hatch.
The chickens will be kicking up bedding material. Elevate the waterer and feeder to keep them clean. They can go as high as chicken shoulder.
When drinking, chickens will shake and scatter water droplets. Some distance between the waterer and feeder would be prudent. A wall mount PVC pipe or wooden trough feeder on the far wall from the nests and the waterer next to the nests should be sufficient space.