Among the a variety of security features built into a modern hot water heater, maybe the most crucial is the pressure and temperature relief valve. Also known as the T & P or TPR valve, this distinctive safety valve is mainly responsible for making sure a warm water heater stays within its intended temperature and pressure limits. If something goes wrong, the valve opens to release excess pressure by means of a discharge line. Replacing a relief valve isn’t a challenging procedure, but maintain your main pipe wrench handy if corrosion on the threads makes the old one difficult to eliminate. Turn the hot water heater control valve to the off position and the temperature dial to its smallest setting. Turn off the water supply to the heater in the valve located on the cold water running into the tank. Instead, switch off the water in the home supply valve….
How to Replace the Safety Valve on a Hot Water Heater
