How often should I inspect and maintain my expansion tank in a domestic hot water system?

Regular inspection and maintenance of the expansion tank are crucial to ensure safe and efficient operation of the domestic hot water system. It is recommended to inspect the tank every 6-12 months, checking for signs of corrosion, damage, or wear. The tank should also be drained and cleaned periodically to remove any sediment or debris that may have accumulated. Additionally, the tank’s pressure gauge and relief valve should be checked and calibrated regularly to ensure proper function.