What is the main goal of a backflow prevention device?

The main goal of a backflow prevention device is to prevent contamination of the potable water supply. This device is essential for ensuring that the water we drink remains safe and free from harmful substances. Backflow can occur when there is a change in pressure in the water system, allowing water from non-potable sources to flow backward into the drinking water supply. By installing backflow prevention devices, water distribution systems can maintain the integrity of the potable water, protecting public health and ensuring compliance with health regulations.

The other options focus on functions that do not align with the primary purpose of backflow prevention. Increasing water pressure or facilitating faster water flow does not address the contamination risk, while regulating water temperatures is unrelated to the prevention of backflow incidents. The core function of these devices is solely geared towards safeguarding the water supply from pollutants and potential health hazards.