During the plumbing maintenance, I discovered that the tank had not been flushed in the past five years. I performed a thorough inspection and decided against flushing the tank to avoid potential complications. I tested the expansion tank and found no air escaping from the Schrader valve, indicating it was functioning correctly. I informed the customer that I was prepared to replace the water heater and expansion tank if necessary, ensuring they understood the potential need for these replacements to maintain system efficiency and longevity.
