Water heater anode rod or
sacrificial anode is the important component part with only one
purpose; to protect metal tank from corrosion.
Most hot water heaters are equipped with one or more anode rods.
Anode service depends on the water conductivity as the rod
deteriorates during the time. This is why it is important to
maintain the rod, to keep the tank in operating condition. Depleted
anode rod does not affect the water taste or color but the rod
inspection and replacement can extend the life of your