Abstract: A water line, made up of joined sections of PVC pipe, may have any desired length. The pipe is suspended from drops at ten (10) foot intervals for example. The pipe is partially supported in plastic drop hangers having insulating and elastic properties. The drop hangers have an aperture at the upper end for connection to a drop, a laterally opening recess at the lower end to receive the pipe in snap-in relation, and a laterally opening recess intermediate its ends for receiving a metal conduit in snap-in relation. The metal conduit is formed as a continuous line and functions as a part of an electric circuit. Plastic support hangers have corresponding laterally opening recesses for the pipe and conduit. The support hangers are used as needed between the drop hangers to maintain the pipe in non-sagging relation relative to the conduit or to support a shocker wire. The pipe carries spaced animal operated drinker valves, which may be mounted in drinker cups.