Essential Plumbing Tools Every Pro Should Know
What is the role of a backflow preventer in a plumbing system?

Correct Incorrect A backflow preventer is essential in plumbing systems to prevent contaminated water from flowing back into the clean water supply, ensuring safe drinking water. Backflow can occur due to pressure changes, such as during a water main break or heavy water usage. These devices are especially important in urban areas where the risk of contamination is higher due to industrial and residential activity.