Urbanisation and population growth lead to increased water demand and might affect the water sources. Hence, it is important to manage it effectively. This paper reviews the use of Internet of Things (IoT) device in monitoring water system to conserve and manage the precious resources. The IoT technology is most synonymous with the latest wireless system for data acquisition for real-time monitoring surveillances. The real-time monitoring process involves large distribution of monitoring sensor and network such as computing, wireless sensor network and cloud computing. Traditionally, water quantity and quality reading has been labour intensive and subsequently an expensive process. By application of IoT, human involvement shall be minimized and most procedural decisions in a normal process will be made by algorithms. Developing user-friendly IoT tools will be an excellent contender in real time water monitoring solutions and lead to efficient management.