As longtime professionals in the plumbing business, we sometimes hear the question – what is a backflow preventer and why do I need it? In this post, we’re hoping to answer that question for you, and help you make an informed decision about backflow preventers.
A backflow preventer is a device that stops the backward flow of water that is contaminated and other liquids from entering the water supply. It is required by law in most buildings and properties to protect local residents from water that could be polluted.
Backflow is caused by water pressure in a main line dropping below the pressure in the building’s supply system. A break in the main water line can cause backflow problems, as could a broken water pump, or greater demand for water usage in a region. If water from the plumbing system of a building flows back into the main water supply, it could cause water contamination with chemicals, bacteria and other dangerous pollutants.
The backflow preventer creates a physical barrier between the water supply in the region and a property’s plumbing system. It gets installed on the buildings water supply line, and allows water to only flow in one direction. If the main water supply system’s pressure drops below the building’s water pressure, the backflow device automatically shuts off and prevents water from flowing back into the system.
Since backflow preventers are required by law in many states, failure to install and maintain one could result in the property owner or construction company to incur fines and penalties. Backflow preventers are usually required in restaurants, hospitals and other commercial buildings where water safety is extra important, but they are often required in residential buildings as well, especially if a home has a sprinkler system or a swimming pool.
Why You Need A Backflow Preventer If You Don’t Have It
A backflow preventer is an important water safety device, and it prevents contaminated water from entering a water supply. It is important for public safety, and ensuring that the region’s water supply is safe.
Hopefully, we’ve answered your question of “What is a backflow preventer and why do I need it?” At Maffet Plumbing, we’re happy to help with all of your plumbing concerns in South Jersey, for both residential and commercial buildings.