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What is a cross-connection?

A. A pressure gauge on a high-temperature warewashing machine
B. The spread of allergens from one food item to another
C. A link from a potable water system to a nonpotable water system
D. The open space between the floor drain and the drainpipe of a sink

Answer :

Final answer:

A cross-connection occurs when there is a link between potable and nonpotable water systems, posing significant health risks. It can lead to contamination of drinking water, resulting in illnesses. Proper plumbing practices, such as installing backflow preventers, can mitigate these risks.


Explanation:

Understanding Cross-Connections


A cross-connection is a direct link between a potable water system (clean drinking water) and a nonpotable water system (water that is unsafe for drinking). This can create serious health hazards, as it allows contaminants from the nonpotable supply to flow back into the drinking water supply, which can lead to waterborne diseases.



  • Example: If a garden hose is connected to a faucet that also supplies drinking water, and the end of that hose is submerged in a nonpotable source (like a pool), the contaminated water could backflow into the drinking supply.

  • Consequences: This can result in outbreaks of illnesses if contaminated water is ingested.

  • Prevention: Backflow preventers are often installed in plumbing systems to eliminate this risk.


Learn more about Cross-Connection here:

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