Rainwater-Harvesting - Model Rain Backup BUB01 -Mains Water Backup System

Every system needs a mains water backup to keep the appliances going. The simplest way is a float switch and solenoid valve; the float switch detects when the rainwater storage tank is empty and opens the electrically-actuated solenoid valve so that mains water flows into the bottom of the tank. When the float switch floats off the bottom of the tank it turns the solenoid valve off. The bulk of the storage tank remains empty ready to admit the water from the next rain shower. The Rain Backup in a Box® is fitted inside the building where the occupiers can see and hear it. When rainwater has run out, any mains water running from the solenoid valve into the tundish can be seen through the transparent cover and can be heard through the aperture at the side.The Rain Backup in a Box® replaces a higgle piggle of components with a single wall mounted unit, one electric plug to a wall socket, mains water input and a pipe to the underground storage tank.