Upon arrival Adam and I discussed his water heater. He stated it was 1.5-2 years old and he wanted to make sure to keep up with the maintenance on it. He stated that at this time he has no other plumbing issues he’d like us to address. I discussed a service membership with him and he stated that at this time it’s not for him. Afterwards to begin the water heater drain and flush I turned the cold water off to the water heater and the hot side to isolate the water heater. I drained it down by opening the T&P valve to release the vacuum and allow the water to drain freely. After it was fully drained I closed the t&p valve and flushed with water till the drainage no longer had sediment coming out. I turned the gas back land relight the pilot light. Bled the air out of the system to ensure properly functioning.