Met with Kim, Kevin and began to discuss issues or concerns. Started the service with the plumbing inspection. Performed a thorough walkthrough…. the kitchen, bathrooms and laundry room. Inspected the faucets for proper operation. Ran the hot / cold water lines. Checked for leaks at the traps. Inspected / tested the toilets. Checked the dishwasher, washing machine and utility sink basin in the laundry room, along with the gas line. Checked both air handlers. Opened up the evaporator cabinet and inspected the coils. Installed anti microbial tablets. Replaced the air filters. Connected the hose to flush and service the water heater. Closed off the water supply, opened up the pressure relief valve and drain. Very little water pouring out. Flushed the tank by giving it burst of cold water from the supply. Buttoned the unit up an allowed it to reach temperature. Burped the hot side of the lines in a couple of sinks. Moved to the outside condenser. The R22 unit was making a humming sound f