I have a 25 gallon barrel that will fill from the gutters on the coop. That's their email drinking water. From there it's piped into the coop with 2 nipples and then heads into the run with two more nipples. I have a shutoff option to keep the water only inside during freezing temperatures and a drain at the very end shld I need to empty the entire system. I put the pipes and nipples a little high with the expectations of putting paving stones under to give the hens a boost if necessary.