Evaluation of Integration of Pressure Management Methods with Network Management Operations to Reduce Water Loss Using Topsis-Vikor Decision Making Technique

In order to optimally manage the pressure and reduce the non-revenue water as much as possible, taking into account the costs of each activity, it is necessary to examine the priority of each solution by scientific methods and considering the costs, efficiency and duration of implementation. Therefore, in order to avoid cost wastage and efficient use of financial resources, it is necessary to use a comprehensive and systematic approach to identify different strategies that can be used to manage urban water pressure, the benefits and Compare their disadvantages. In the statistical population of this research, the knowledge and experience of 35 experts in the water and wastewater industry were used. Also in order to prioritize the proposed operations with the aim of reducing non-revenue water based on three criteria: the impact of the project, the duration of the project and the cost of the project, the integrated TOPSIS-VIKOR method has been used. Findings indicate that in the first priority, the installation of online data loggers pressure gauges, the second priority is the continuous updating of water maps and GIS network mapping, and in the third priority the completion of its information layers including pipe life, material and diameter, were located.