The FEBCO 860 is a reduced pressure zone assembly (RPZ) used to protect against high hazard fluids reversing flow in the water supply.  The 860 is generally used in industrial plants, hospitals, morgues, mortuaries, and chemical plants, but can also be used in irrigation systems, boiler feeds, water lines and other installations which require maximum

RPZ Backflow refers to Reduced Pressure Zone backflow.  A RPZ is a backflow preventer device which protects the potable water supply by preventing backflow from happening.  This is accomplished by preventing back pressure or back siphonage, which causes water to reverse direction in your pipes, thus sending contaminants back into the city water supply. RPZ

A one-way valve, also known as a check valve, clack valve or non-return valve (back flow valves), is a mechanism that only allows fluid to flow through it in one direction.  They have many applications in construction and plumbing, but for this article we will be discussing their use in the prevention of backflow. A