What is an advantage of a 'wet tap' vs. a 'dry tap'? You do not need to ______ the water line down.

What is an advantage of a 'wet tap' vs. a 'dry tap'? You do not need to ______ the water line down.

• A. Down
• B. Turn off
• C. Close
• D. Down or turn off

Answer: (D)

The main idea is that a wet tap lets you connect to a live, pressurized water main without stopping the flow. Because the line stays in service during the tapping process, there’s no need to depressurize or drain the main. That’s the practical advantage: you avoid interrupting service to customers. So the sentence is best completed by indicating you don’t need to down or turn off the water line. A dry tap, by contrast, would require shutting off and often draining the main before tapping, which causes a service outage.

The main idea is that a wet tap lets you connect to a live, pressurized water main without stopping the flow. Because the line stays in service during the tapping process, there’s no need to depressurize or drain the main. That’s the practical advantage: you avoid interrupting service to customers.

So the sentence is best completed by indicating you don’t need to down or turn off the water line. A dry tap, by contrast, would require shutting off and often draining the main before tapping, which causes a service outage.