The installation of backflow preventer valves is a legal requirement in many countries and is specified by Australian and American Rainwater Catchment Association Standards as minimum requirements for rainwater harvesting installations.
In anticipation of future regulations and in order to protect property owners from contaminating the municipal water supply, Use-Rainwater.com use backflow preventer valves in all their installations.
In most of the of the installations the the backflow preventer valves must be installed at the point where municipal water enters the property, generally just after the water meter. This ensures that the water within the property remains within the boundaries of the property and eliminates the risk of any backflow from the property to the municipal supply. The backflow preventor valves work extremely effectively and have very low and little maintenance requirements As part of their service to customers Use-rainwater annually test the backflow valves to ensure effective operation and continued protection of the property against backflow risks.
Below is a video explaining how a backflow preventer valve works.
