When answering this question, focus on detailing your practical experience with residential plumbing systems. Mention specific tasks you've performed, such as installing and repairing piping systems, plumbing fixtures, and equipment like water heaters and backflow preventers. Provide examples of projects you've worked on, challenges you've faced, and how you resolved them. Highlight any relevant certifications or training you have completed. For instance, you might say:
"I have over five years of experience working with residential plumbing systems. I've installed and repaired various piping systems, including copper, PVC, and PEX. One notable project was replacing an entire home's plumbing system, where I also installed new water heaters and backflow preventers. I am certified in backflow prevention and have completed advanced training in water heater installation. In one challenging situation, I had to troubleshoot a persistent leak that required rerouting the piping system, which I successfully resolved by implementing a more efficient layout."
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