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What is cross-connection?

A. A link between two SAFE water systems
B. Piping in a drink dispenser
C. Piping used in dishwashers
D. A link between a SAFE and UNSAFE water system

Answer :

Final answer:

Cross-connection is a link between potable (safe) and non-potable (unsafe) water systems that can lead to contamination of the safe water supply. It's important to prevent cross-connections to ensure water safety, often using devices like air gaps, check valves, and reverse osmosis systems.

Explanation:

What is cross-connection? Cross-connection refers to a link or a connection between a potable (safe) water system and an unsafe or non-potable water system. This link can potentially allow contaminants to enter the safe water system due to backflow, causing the water to become unsafe for consumption. It is a significant concern in plumbing and water safety because it can lead to water contamination and can pose serious health risks.

Examples of cross-connection include uncontrolled links between public water supplies and irrigation systems, pools, or other sources that might contain harmful chemicals or bacteria. To mitigate the risks of cross-connection, various devices and methods are used, such as air gaps, check valves, or more complex systems like reverse osmosis units for purifying drinking water, as shown in Figure 11.26. Inline water filters, as mentioned in references provided, are one of the solutions implemented to reduce the concentration of solutes in tap water and prevent potential contaminants from entering the potable water system.

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Rewritten by : Jeany