RV Water heater sacrificial anode replacement
While at Sikeston, MO, I checked the water heater anode rod in our 5th Wheel RV. A sacrificial anode rod is a rod made of Magnesium, Aluminum or a combination of Aluminum, Zinc and Tin which in simple terms diverts corrosive action away from the tank walls and onto itself. As the name sacrificial indicates, the anode rod will slowly corrode away by chemical reaction as it protects the rest of the tank.