Rain Water Controls

The GRAF Aqua-Center-Silentio is the central system control for your rainwater harvesting system. The microelectronics control and regulate the entire system.

The pump and processor units are compactly installed with the intake container. The switching valve is sensor-controlled and opens the drinking water intake to the service water network when the water level is low in the cistern. The Aqua- Center-Silentio switches back to rainwater operation after even a brief rain shower.

The Aqua-Center-Silentio is safety-tested in accordance with DIN 1988 and EN 1717 and can be installed above the backpressure level without problems. By connecting a lifting device in accordance with DIN 1988 and EN 1717 to the overfl ow, installation is also possible below the backpressure level.

Please follow the installation instructions. A quiet, multi-stage, self-priming centrifugal pump with professional output works below the attractive soundproof hood. The Aqua- Center-Silentio comes ready to connect – this facilitates a simple and quick start-up.

: Download Technical Specification in PDF