Backflow Prevention Practice Exam

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What is a possible consequence of insufficient pressure in a plumbing system with a backflow preventer?

Reduced water quality
Increased risk of backflow
Higher maintenance costs
Decreased water usage

The correct answer is: Increased risk of backflow

Insufficient pressure in a plumbing system can create conditions that contribute to backflow, which occurs when water flows in the opposite direction of its intended path. When the pressure is not adequate, there's a risk that contaminants from non-potable sources could be drawn back into the potable water supply due to a drop in the system's pressure. This scenario can result from various factors, such as excessive demand on the system, pipe leaks, or improperly functioning equipment. Therefore, maintaining adequate pressure is essential for ensuring that water flows correctly and prevents backflow, safeguarding water quality and public health.