View visual findings from this job here - https://visionshare.xoi.io/?id=XA-A243-D1A87BF33B0D458A95259D1D934D92B7 Customer has a leak from his gas water boiler, which he believes is coming from the pressure relief valve: * At arrival check the boiler in the basement * System is on standby with no active call * confirm boiler pressure and temperature is normal * call for heating at thermostat- monitor pressure and temperature with water feed closed * within minutes boiler pressure is rising past 25 psi - the expansion tank is filled with water and has gone bad * quote customer on replacement of expansion tank- he approved * shit down boiler and isolate expansion tank * removed the existing expansion tank from the boiler supply piping * installed and secured brand new expansion tank in place - open valve back to tank and adjusted pressure- confirm no leaks * return water feed valve back to open position and return power to boiler * vent damper opens, igniter sparks pilot and boiler fi