You can make a waterer very similar to the pipe feeder. The problem with the waterer is that you have to take it down to fill and you need it to be air tight with an airtight lid. My one gallon waterer is enough for 10 chickens for a day(half day in hot weather). Since i collect eggs several times daily they are not a problem for me. I thought about using a 3 gallon waterer but they get dirty daily and need to be changed anyway.
good luck
good luck