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What is a cross-connection?

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

Answer :

Final answer:

A cross-connection is a link from a drinkable water system to a non-drinkable system, which can cause contamination of safe drinking water. It poses numerous health risks due to potential backflow of pollutants. Preventative measures such as backflow prevention devices are crucial to protect public health.


Explanation:

Understanding Cross-Connections


A cross-connection is defined as a link from a drinkable water system to a non-drinkable water system. This can pose significant health risks, as it creates a pathway for contaminants to enter the potable water supply.


Examples and Risks of Cross-Connections



  1. If a garden hose is left submerged in a contaminated pond, a cross-connection can occur when water pressure drops, potentially allowing dirty water to flow back into the household water supply.

  2. Another example is when a water supply line is improperly connected to a sprinkler system that uses chemicals or fertilizers, which could also lead to contamination.


To prevent such incidents, building codes often require backflow prevention devices, which help safeguard the integrity of the public water system.


Learn more about cross-connection here:

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