Customer stated water heater making noise and water not getting hot. Found water heater t&p valve running. Tested water pressure and found the psi was 120 with the t&p running. Could not find prv but found the emergency shut off valve. Valve was to close to the slab and other pipes to install prv. Replaced t&p and installed prv outside of home inside a box right after the meter box Could not get signatures due to the tenet not being home Job is completed