There are several types of waterer that might be what you are looking for - can you provide a description or even a picture of what it is you are referring to, that would make it a lot easier to know where to suggest you find one.
I built a vertical nipple system and it works perfectly. Clean, fresh water available at all times. 3-gallon bucket, 5 feet of 1/2" schedule 40 and some "T" fittings that were already threaded for 1/8" pipe. Going to lengthen the pipe and add more nipples on the other side of the run.