Water supplies in some countries are a severe problem. Where this is so, legislation to reduce fresh water consumption has been strengthened over the years. The purpose of water allocation network (WAN) synthesis is to reduce freshwater consumption and wastewater discharge, while maintaining network reliability, safety and maintenance cost. The structure of WAN has a significant impact on reliability issues. In this paper reliability analysis is integrated into the WAN synthesis problem. In order to obtain a WAN that is reliable and consumes the minimum freshwater, an example presented to illustrate the application of the proposed method demonstrates the method is effective.
