Your backflow assembly is a delicate system of springs and check valves that prevent stagnant polluted irrigation water from contaminating your domestic drinking water supply. The internal components of a backflow assembly are particularly susceptible to freeze damage, if not winterized properly, and can also be damaged by sand, calcium, or other mineral deposits in your water. State of Idaho requires all backflow assemblies to be tested once annually. It is extremely important that backflow testing is done each and every year, so we can catch and prevent or repair any malfunctions that could pose a health risk by contamination. We perform backflow testing and repair if necessary, for your health, public safety, and peace of mind.