How Do You Replace A Hot Water Heater Expansion Tank?
Save money by doing the basic maintenance on your water heater yourself. One of the most important maintenance tasks is replacing the expansion tank. While it may seem like a big job, it’s actually quite a simple operation. Determine the system pressure. Open a faucet in the house for 1 to 2 minutes to allow the system pressure to equalize and then close the faucet. Read and record the system pressure at the pressure gauge. Pre-charge the expansion tank by pumping air into it until it reaches the system pressure. Check the pressure with a tire pressure gauge. Turn off power to the water heater system and allow it to cool. This may take up to an hour. Shut off the water supply to the water heater system. The shutoff may be at the heater itself or it may be further up the pipeline. Turn the valve handle so that it is perpendicular to the pipeline to close it. Drain the system to reduce water pressure. Check if there is a bleeder valve on either the heater system or near the old expansion
