Most people have never heard of an anode rod even though they have been vital to water heater longevity for decades! Water can cause rust on metals and with enough time will start to erode metal away. Especially when the water is hot. Simple enough, but people forget that water heaters are made of metal and the water inside can be extremely hot and corrosive. That’s why all storage water heaters come with anode rods.
What is an Anode Rod?
An Anode rod is a rod of corrodible metal that is put into your water heater to make sure that the corrosive materials in water are attracted to it instead of the lining of your water heater.
Anode rod’s perform much like a magnet. All corrosive materials are drawn to the anode rod so they leave the tank alone. It is a highly important part in your water heater, but it is designed to wear away over time and will need replacement periodically.
Once the Anode Rod has worn away, your water will start attacking the lining of the water heater. Eventually the walls of the water heater will rupture and potentially cause flooding and water damage.
Do not risk it, make sure your anode rod is in good working condition!