What Is a Backflow Preventer?
Backflow preventers are devices that are installed on your business or home’s water pipes that only allow water to flow in one direction and not the opposite. They are designed to make sure potable water, or drinking water doesn’t get contaminated from other sources because of a backflow event.
Backflow preventers ensure you and your neighbors have a clean drinking supply, as well as making sure the city’s main water supply stays clean and free of waste, chemicals, or other contaminants that might flow backwards through pipes during a drop in water pressure.
Several states require homes and commercial businesses to install backflow prevention devices. Many newer buildings and irrigation systems already come equipped with one or many.