Backflow Prevention

Yes, under the updated program, new residential construction or substantially renovated properties need to install backflow prevention devices.

Backflows are prevented by installing backflow prevention assemblies onto a piping system to allow water to flow in only one direction. 

A backflow can occur when a substance flows back into the public water system as water pressure fluctuates.  This could be as a result of a water main break or hydrant usage.

A cross connection is a physical connection between the drinking water system and any other piping system containing a non-potable substance. An example of a potential cross connection is a garden hose attached to an outside spigot with the end of the hose submerged in a pool or connected to a container holding a toxic…