Water heater leaking upon arrival. Customer stated she didn’t have any hot water to the shower and once she went to look at the water heater she noticed the pan was full. Informed customer we could replace the water heater and add code upgrades. Gave customer estimate. Customer approved estimate. Installed new Rheem 40 gal gas short water heater, new expansion tank, new shutoff. Turned on water and fired up water heater. Found no leaks on gas or water. Water heater is lit and working upon departure