Illinois Plumbing Code Practice

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Why is the backflow preventer crucial for public health?

It helps to maintain water temperature

It prevents cross-connection of potable and non-potable water

The backflow preventer is crucial for public health primarily because it prevents cross-connection of potable (drinking) and non-potable (non-drinking) water. Backflow can occur when there is a sudden change in water pressure that causes water to flow in the opposite direction, allowing contaminated water to enter the clean water supply. This can happen in various scenarios, such as during pipe breaks or when high water usage causes drops in pressure. By installing backflow preventers, the plumbing system ensures that safe drinking water remains uncontaminated, thus protecting the health of the public from waterborne diseases and pollutants. This protective measure is essential for maintaining the integrity of municipal water systems and safeguarding the health of individuals who rely on them.

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It saves energy consumption in water pumps

It provides automatic drainage

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