A Two Tank Interaction System is a classic example in control theory and process control. It is used for teaching and demonstrating principles of control systems and feedback control. This system consists of two interconnected tanks (containers) that are used to control the liquid levels within them. It provides a hands-on way to study control strategies and the behavior of interconnected systems. The control system consists of a controller that computes the control signals for the pumps based on the measurements from the sensors and a reference (desired) level for the process tank. Furthermore, the Two Tank Interaction System is a valuable tool for teaching and learning about control system concepts, such as feedback control, disturbance rejection, cascade control, and control loop interactions.