Mains Water Top-Up for Rainwater Harvesting Systems
Automatic mains water top-up is a necessary secondary backup supply to feed mains-water to the rainwater storage tank during prolonged dry periods, ensuring continuous automatic operation of the rainwater harvesting unit.
The WISY Open Potable Water Outlet operates with a solenoid-valve triggered by a float-switch inside the tank. The Open Potable Water Outlet must be installed inside (dry conditions) and is in accordance with European, German and UK Water Regulations (air-gap) - DIN EN 1717, DIN 1989.
The Open Potable Water Outlet is available in different sizes depending on the tank size and top-up volume required for sufficient mains water backup supply.