Sturdy External Float Valve
The Sturdy External Float Valve is designed to connect to the mains water supply above your attic tank. It provides a back up supply of water in the event of demand exceeding rainfall. Its design prevents the possibility of any back flow of rainwater into the mains system.
Under normal conditions rainwater will fill the tank. If the rainwater level drops below a pre-set level, the Float Valve will open to maintain the water level using the mains water supply.