Abstract: An elongate pipe is connected to an elongate flange by a plurality of spaced clamps. The pipe is suspended from the elongate flange. The clamps and the conduit have a snap-in connection to clamp each other together and embrace the pipe between them.A drinking water supply apparatus extends below the pipe and includes a nipple drinker which screw threadably engages the clamp and pipe to provide a passage for the water within the pipe through the nipple. A housing screw threadably engages the nipple and encloses an actuating pin depending from the nipple which pin, when raised, allows water to flow from the pipe. A striker extends into the housing, the striker having a water container on its lower end and being supported by a compression spring. When the water level in the container falls below a predetermined level, the spring raises the striker into engagement with the pin to raise the pin and allow water to flow from the pipe, through the nipple drinker and housing into the container.