Graf offers you the best made of plastic material for your home and industry! As European market leader in the range of rainwater harvesting, we find solutions and inform you on options around the responsible use of water.
The rainwater consumers in your home are supplied by a separate supply network. This video presents the GRAF Aqua-Center-Silentio, which automatically controls the rainwater system and continually monitors the rainwater reserve in the tank. If the tank is empty, it supplies drinking water to the supply network as required. Your home is therefore assured a reliable supply of water at all times thanks to the convenient GRAF Aqua-Center-Silentio system control.