Magnesium Rod

What is the purpose of a magnesium rod inside a water heater?

can someone tell me what the purpose of a magnesium rod within a water heater is? thanks!

This is a sacrificial anode. It slows the corrosion inside the glass-lined steel tank. They are magnesium, zinc and aluminum - different breed of different need. For more information about anode rods water heater: http://water-heater-quick-guide.com/water-heater-anode-rod.html

Magnesium Rod

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