OK, this isn't earth shattering, but wouldn't it be nicer if the well interface was a little more streamlined? Say you've got six empty buckets on you, then what if you could just right-click the well, and it would autofill all your empty containers? Maybe from a rt-click radial button "fill all" or something?
This would make filling up water barrels much easier too. Wouldn't necessarily be all that much faster, but at least less of a pain in the neck.