The Grundfos CME Booster is a compact booster system for water supply in domestic applications. The integrated speed controller enables the CME Booster to keep constant pressure in the pipe system. A pressure sensor monitoring changes in the water consumption will signal to the speed controller to change the motor speed to adapt performance to the new state. The CME Booster is very easy to install. When the system has been connected to the pipework connect the power supply and the system is operational. The CME Booster consists of a CME pump with integrated frequency converter, a 5-way valve, an expansion tank, and a pressure gauge.