This research attempts to enhance of the ability of Fuzzy Logic Controller in controlling wastewater treatment system, highlighting the pH parameter in factory wastewater treatment plants. The research not only covers methods to monitor and track the pH level in wastewater tank but more importantly, the control of total wastewater volume by neutralising the pH. Fuzzy logic control has gained more attention in the control of continuous processes. It utilised both, in the context of deciding and tracking set-points, and to control the total unwanted water capacity. This paper also discusses suitable level of pH required which will not damage the water ecosystem. The self-learning fuzzy logic control with adaptive capabilities alert operator in charge of the pH level automatically. This research includes the design and development a graphical user interface (GUI) to show the process of pH neutralisation in wastewater treatment. A fast response system is achieved through GUI which could be monitored and control remotely using laptop or smartphone, from anywhere. This proposed design will inform engineers and technicians about the status of the current reading of parameters in the wastewater treatment system without the hassle of going to the site or control room of the wastewater treatment plant.