The lead plumber was very thorough. As he was working he was explaining step by step to his trainee. My hot water tank is less than three years old and was leaking at the top and into the tank. The plumber was able to replace the connector and stop the leak. My hot water tank should last several more years. However, he did indentify another leak in a pipe leading to the tank. I will only request him for future services. Thank you.