Backflow is a term used to describe unwanted flow of water in the reverse direction. Backflow into a public or private water supply can pollute or contaminate the system and pose a serious health risk. There are a few reasons why backflows occur, so it’s best to consult with a licensed plumbing contractor to determine why. When proactive maintenance is not an option, a backflow preventer can be installed and can help with:
- Back siphonage
- Cross-connections
- Can be installed inside or outside the home depending on the situation
Installing these valves must be done by a professional plumber who has the knowledge, experience and certification to properly install and test the device. Once installed, you must have it cleaned and checked periodically to ensure that it continues to work correctly. Just like a car, these devices have parts that wear out and need replaced. They must be tested at least once a year to ensure everything is working properly.
