Arrived on site customer stated that they have a fireplace that they do not know how to work. They also had questions on some shut off valves located in the home. Upon inspection looked a couple valves for the washing machine and confirmed that they were on and working and tagged main shut off valve in the home. Inspected fireplace and found pilot light was already lit and the switch just needed to be turned on showed customer how to work it. Collected visual diagnostic fee and will credit towards work quoted today.