What is a backflow 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.
What are backflow prevention devices?
Backflow prevention devices are used to protect our water supply from contamination due to backflow. Without these preventative devices, water could become contaminated and not be safe for consumption.
Do I have a backflow prevention device?
Backflow devices can be found in houses with pools and/or irrigation systems, restaurants, and medical facilities. All the plumbing system connections require a backflow device.
All commercial properties are required to have a backflow prevention device. Residential properties with an irrigation system are required to have a backflow prevention device. In most residential applications, the backflow prevention device can be found by the curb in a separate box by your water meter. Commercial installations can be found at the curb or inside the building.
Why do I need to have my device tested?
Backflow prevention devices degrade over time and, therefore, must be tested annually to ensure the device is in complete working order.
*At this time, residential properties with pools or irrigation systems are required to have only a backflow test performed upon installation.