Posts Tagged: anode rod

How an Anode Rod Works Inside a Water Heater Tank

How an Anode Rod Works at the Electron Level Quick Summary An anode rod is designed to corrode on purpose so the steel tank doesn’t. Understanding how an anode rod works means understanding basic electrochemistry, galvanic corrosion, and why the tank itself survives while the anode rod slowly disappears. In this article, I’ll explain how an anode rod works, the chemical process that sacrifices the rod, the different types of anode rods, and why replacing one at the right time can add years to the life of a water heater. … Read More