For this job, I did a leak troubleshoot for homeowner discovered. There was no leak on the main water service. Once I isolated it between the valve and the shut off inside upon further investigation I discovered the water heater was evacuating water from the TMP water heater from 2015 also discovered expansion tank has failed. The home is 25 years old and it is the original PRV in the master bathroom. I discovered that the faucet on the left side of the double vanity is leaking from the body and the shower valve upstairs has a cartridge that has failed once I isolated the water heater. I checked the meter homeowner is losing 4.8 gallons a minute, but I believe that is because of the shower valve.