This present work has for objective the formulation and simulation of a real water supply system by monitoring and controlling all the process involved. It shows every settings of a water supply system existing in commercial and residential buildings, even as details of installation and how it works properly. The purpose is also evincing the performance of this automatic system, which generates money and water savings. The developed system integrate several subsystems in only one, giving the power to supervise all small systems, and independency to operate one subsystem without shutting down others, it simplifies the tasks of building staff. This feature can be amplified and result in more savings, proportional to the size of condominium. Moreover, the software used to this work has an intuitive monitoring panel facilitating manipulation and knowledge of what is happening in the system. Due to growth of the technology combined with the need of instant decisions, it has been more and more indispensable having this power to make decisions in hands. Thus, the system carries this advantage to access remotely the water supply system, monitoring and controlling a dynamic process from a distant and safe place.