You can do the pipe thing with horizontal nipples and the cup waterers, too. I know those instructions used the push-in, but I use the screw-in kind.
Really? I may have to try that then! Although the bucket has been working out great so far. Would be nice to get it up higher though. Does it stay cool? Because my bucket is deep so stays freezing near the bottom. I'd be worried a pipe would hear uo like a hose on a summer day