What is an Anode Rod?
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The Anode Attracts the Corrosive Properties in the Water
The interior of your water heater is lined with a type of glass to protect the water heater's steel from corroding. Over time this glass lining can develop cracks and lead to deterioration. In an effort to curve this, a water heater comes with an anode rod made from a more conductive metal to attract the corrosive properties in your water through a process called electrolysis.