Homeowner had leak upstairs which was fixed by another company. During this scope of work the pressure regulator was adjusted. When I arrived the water pressure was reading 20psi. In addition the thermal expansion tank was not functioning properly. Due to the age of the water I recommended replacing the relief valve for the water heater which is supposed to be replaced every 3-5 years. The garage disposal was said to be smoking during previous usage. Due to age these plumbing system components were replaced. After repairs were completed we tested. Verified with homeowner that they were satisfied with the completion.