The Davey RainBank is an Australian made rain tank interconnection device that provides automatic mains water backup for tank-to-toilet and laundry connections.
RainBank can save up to 40% of a households mains water use, helping to conserve this precious resource and lower water bills. It is an automatic controller for rainwater harvesting supplying water for toilet and laundry applications.
The system automatically selects the water source with rainwater given the priority over mains supply. Mains water is supplied when the tank is empty or in the event of a power outage.