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mariarad [96]
2 years ago
7

Which one of these tips for preventing contamination caused by plumbing is advised by the NRA's ServSafe program? Always attach

a hose to a faucet unless a backflow prevention device is attached. Create a cross-connection to prevent a backflow. Use pvc piping. Create an air gap to prevent a backflow.
Health
2 answers:
Bad White [126]2 years ago
6 0

Answer:

Create an air gap to prevent backflow.

Explanation:

An air gap prevents contamination of the water because it creates a space between the water outlet and a contaminated source. So, if there is, for example, a decrease in the pressure that pumps the water to the faucet, the water the air gap will prevent the contamination of potable water and the cause of different illnesses.

Mamont248 [21]2 years ago
4 0

Answer:

D.

Explanation:

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