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- #11
Thing on the underside that you tighten.The big black donut ring inside the base that you can't see when it's put together, or the black nut on the underside you tighten?
The green 6 gallon is the one I have, but they're all built the same way.
The two waterers are not exactly the same. The company actually used a different float than the red one, I think I read somewhere. (Not positive).
Have to research.