Water supply distribution network components needs to design carefully because of cost involved andrnits life time required to serve. However, in many of the developing countries, like ours the hydraulicrnand physical performance of water distribution network is inadequate to meet consumersâ€™rnsatisfaction on water supply and losses in system. Likimse-Abela, gravitational water supply systemrnin Wolayta Zone, Humbo Woreda has been experiencing disruption and uneven distribution of waterrnsupplies for days to a week. This study was conducted in Likimse-Abela, to evaluate hydraulicrnperformance of existing water supply distribution system of the rural PAs. Both primary andrnsecondary data sources were used in this study. Primary data were collected though Key informantrninterview and focus group discussion with Likimse-Abela Committee members, Woreda Water andrnIrrigation office experts, field observations, photographs of relevant sites and infrastructures wererntaken. For secondary data collection, documents review was used to collect valuable information. Tornanalyze the data which is collected from different sources, both qualitative and quantitative methodsrnwas used. The computer software application that is excel was used to analyze the data obtainedrnfrom office. The field survey data for distribution system was evaluated by using the engineeringrnsoftware called EPANET-2. As per the analyzed results; the current average per capita demand ofrnthe area was estimated 11.62lit/cap/day however, enough of water flowing from the source to thernsystem and low system efficiency were observed to satisfy the user community. According tornsimulated results; the maximum of 191.8m and minimum of -73.99m water pressure were examinedrnin the transmission and distribution main, respectively. Further, the analyzed water losses result inrnLikimse-Abela water supply system indicates that about 12.19% and 58.22% of production is Non-rnRevenue Water both on the pressure main and distribution network. In general, weak connection,rnfailure in gate valves and taps, small capacities of night storage reservoir and large volume of waterrnloss were leads the point to work unevenly. Hence, few years after most of residences were notrnsatisfied to the service of the system. Finally, it is recommended that the reduction of NRW, evenlyrndistribution and safeguarding resources through appropriate water demand management strategiesrnshould be given priority. As a result, welfare of human being will be maintained holistically.