Journeyman Plumber ExamGas PipingEasy
A homeowner reports a persistent odor of natural gas near their gas meter and main shutoff valve outside the house. A plumber investigates and confirms a small leak at a threaded connection. After isolating the section and making the repair, what is the MOST critical safety procedure to perform before restoring gas service to the house?
- AVentilate the area around the meter with a fan.
- BCheck all pilot lights in the house are off.
- CNotify the gas utility company of the repair.
- DPerform a leak test on the repaired section and downstream piping.
Show answer & explanationAnswer & explanation
Correct answer: D. Perform a leak test on the repaired section and downstream piping.
After any gas piping repair, especially involving a leak, a thorough leak test of the repaired section and any affected downstream piping is the most critical step to ensure the integrity of the system before restoring gas service. This directly confirms the repair was successful and no new leaks were introduced.
Why the other options are wrong
- A. Ventilating the area is important for safety during and immediately after the repair, but it doesn't confirm the system's integrity.
- B. Checking pilot lights is important before turning gas back on, but it's secondary to ensuring the system is leak-free.
- C. Notifying the utility company might be required by local regulations, but it's not a direct safety procedure for the piping system itself.
Gas Leak Repair Safety
Essential steps taken to ensure safety and system integrity after repairing a gas leak.
- Isolate gas supply first.
- Ventilate hazard area.
- Perform leak test after repair.
Memory trick: Repair the leak, then test the line, safety first, make it shine!