Water Heater Anode Rod: Purpose, Types, Lifespan & Replacement Tips
A water heater anode rod is a small but crucial part inside your water heater tank. Its main job is to protect the tank from rust and corrosion, which can cause leaks and shorten the life of your heater. Made from metals like magnesium, aluminum, or zinc, the anode rod works by corroding itself—sacrificing its…