The task of the diploma thesis is the extension of the water supply of two new branches. The first branch will be located in the center of the village. The second new branch will be mounted on the south side of the village. This design includes also calculation of the flow in the pipe and the design of new pipe sections on new material. In this section, I focused on expansion of the capacity of the volume of water for drinking water supply. I suggested two alternatives. The first alternative is the installation of new more powerful pumps. The second alternative is to build a natural water reservoir with a capacity of 60 m3. In the last part I was designing the new Rules of Operation of public water supply for the village, because the current state is unsatisfactory according to new regulation.