View visual findings from this job here - https://visionshare.xoi.io/?id=XA-A243-F328C5C619A743FE99F4C057FF5DD237 Return to replace expansion tank and relief of gas fire water boiler: At arrival, the boiler is on and running shut System down at service switch the current boiler pressure is just under 30psi and the relief valve is not dripping Isolated expansion tank at ball valve removed additional pressure from tank and removed the expansion tank from boiler piping the tank is completely filled with water - drain out bad tank and removed the from home installed and secured brand new expansion tank in boiler piping open ball valve to new expansion tank letting tank fill and monitoring boiler pressure- okay boiler pressure is back down at a normal 20psi return power to boiler and test system operations multiple radiant, radiator and hydro zones are calling and boiler fires- normal operations monitor boiler pressure and temperature- okay boiler then gets demand call for DHW- test and