Water Take a look at different water systems we have installed. This is a water manifold system. Each pipe goes to a different part of the barn. This is a water manifold system that comes up from a water holding tank. This water tank always has enough water to use as back up water if there happens to be a fire. A different style of a water manifold system. Another view at how the water comes up from the holding tank. View of the water manifold and the incoming system from the water tank.