Verified customers concern of water heater leaking, leak was coming from T&P line checked house pressure found house pressure to be at approximately 133 psi found PRV in the ceiling. PRV appears to be original to the house advised customer that we needed to change that PRV in order to adjust/correct the pressure While replacing the PRV I replaced the three-quarter shut off valve for the house with a new quarter turn ball valve as a courtesy to the customer pressure is now set at 60 psi and the T & P line has stopped leaking.