In community life, the availability of clean water has been decreasing with the decrease in water quality of community consumption. This is obtained from reality and surveys in several villages. Compared with the results of reports from the National Statistics Agency, the province is very volatile and tends to increase every year. In this event, there is an imbalance between the report and reality so sometimes the community can not do anything. it is better if the community or everyone should control the use of clean water. This is an effort to stabilize the availability of clean water in the community. The objective of this study is to provide solutions to tackle those problems by controlling the water flow through a smartphone. Therefore, the consumers who get less water distribution for their daily needs will decrease. The method used to regulate the water flow rate is PI control with the Chien Hrones Reswick (CHR) tuning method. The results show that the Chien Hrones Reswick method produces a better and faster response to achieve a stable condition. Furthermore, when the system is given a disturbance, the response from the sensor can reach a stable condition. Moreover, when the setpoint is changed, the response from the sensor can still follow the setpoint changes and can achieve a good and fast steady state.