What is a backflow device?
Understanding and Maintaining Your Backflow Prevention Device
Overview
Backflow is the reverse flow of water in any pipeline, causing non-potable water to flow into the public water supply. Water that is always under pressure can only flow in one direction. If a water main were to break, the pressure in the water main could drop, causing water to flow towards the point of lowest pressure. Backflow devices prevent the entry of possible harmful substances into the drinking water supply.
Locating Your Backflow Prevention Device:
Residential Properties
- Required if the home has an irrigation system or a pool
- Usually located near the curb in a separate box, next to or near the water meter
Commercial Properties
- Required for all commercial properties
- Usually located near the curb or inside the building.
The Importance of Testing Your Backflow Prevention Device
Backflow prevention devices degrade over time and, therefore, must be tested annually to ensure the device is in complete working order.
For additional information on Backflow Device Testing click here.
*At this time, residential properties with pools or irrigation systems are required to have only a backflow test performed upon installation.