A backwater valve is also known as a backflow valve.  The purpose of these valves is to guard against the sudden reversal of water flow due to a loss in water pressure within the pipes. For individual homeowners this loss of water pressure could result in contaminated sewer water backing up into the house, or

The Febco 825Y is a reduced pressure zone assembly used to protect again backflow in water service areas to industrial plants, hospitals, mortuaries and chemical plants.  It is also used in irrigation systems, water lines and other water installations where the maximum protection against backflow is needed. Backflow occurs, most commonly, when there is a

A backflow valve is a prime example of a backflow preventer, the purpose of which is to prevent contaminated water from flowing back into a clean water supply.  The backflow assembly is generally installed at exit points in a basement or a sewer pipe.  The valve closes immediately when sewage flows or when the pressure