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The Manager shall inspect and approve all installations of the required backflow prevention devices. The costs for purchasing, installing, and maintaining a backflow prevention device shall be the responsibility and sole expense of the consumer. The consumer shall the backflow prevention device.

Backflow can pose a public health risk if pollutants or contaminants such as chemicals enter the drinking water supply from your property. A backflow prevention device allows water to enter the property through the water meter, and prevents water from flowing back into the water supply network.

Check valves use a hinged plug that allows water to pass through the pipeline but blocks it from coming back. Backflow preventers, on the other hand, apply an increased amount of pressure on a pipe to ensure the water can only flow one way.

What is the difference between a backflow device and a backflow assembly, and why are assemblies required? Backflow devices are installed at a building's taps and are not testable. Backflow assemblies are installed at a building's water service connection and are testable and repairable, which is why they are required.

An owner of an installed testable backflow prevention device must: (a) Register the device with the local government; and (b) Have the device inspected or tested for operational functioning at least once each year by a person who is licensed to carry out the work (s. 38(3) SPDR).

Backflow prevention systems are devices installed onto a pipe that only allow water to flow in one direction. Think of it as a one-way gate that allows water from the city's public water supply to flow into your home's piping but stops water if and when it ever tries to flow backwards into the main water supply.

Reduced Pressure Principle Backflow Prevention Assembly (RP) An RP consists of inlet and outlet shut-off valves, four properly located test cocks, a first and second check valve component, and a relief valve component.