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Originally Posted by glatt
I'm not sure what the point is. Prevent evaporation? Keep small animals and deer out? Keep it clean?
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Ptobably all that plus mosquitoes.
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How do they learn that there is water in there? The younger ones can see the older ones doing it, I'm sure, but how was that first cow trained?
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They probably left them out there for a few weeks without the balls at first.