A RPZ Valve, also known as a Reduced Pressure Zone Valve Assembly, is used to protect against back siphonage and back pressure, situations which can cause contaminated water from reaching the public potable water supply. They are called a number of names including backflow valve, backwater valve as well as backflow preventer, but no matter

In accordance with state and federal law, and in particular the Clean Water Act, the City of White Settlement, Texas, maintains and operates a back flow certification and testing program for the prevention of back flow.  This provides assurances to the city’s citizens that a clean water supply will be maintained and it will be

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