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What is the purpose of a backflow preventer in a plumbing system?

Retry Correct Incorrect A backflow preventer is a vital plumbing device that ensures water flows in only one direction, preventing contaminated water from reversing into the public water supply. It safeguards against cross-contamination, making it a crucial component in maintaining water quality and safety.

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DIY Photolibrary/Construction Photography/Avalon/Getty Images

DIY Photolibrary/Construction Photography/Avalon/Getty Images

What is the purpose of a backflow preventer in a plumbing system?

• To prevent contaminated water going back into the public water supply
• To increase water pressure
• To regulate water temperature so it doesn’t overheat
• To allow water to flow in reverse