<p><b>1.How does the anode rod work?</b></p> <p>We all know that the iron tank will be eroded by oxygen and water or other corrosive elements. And the increase in temperature will accelerate this reaction. </p> <p>If your water heater has installed a anode rod, the rod instead of your tank will be corroded. The principle of this reaction is that magnesium metal is more active than iron.</p> <p><b>2.Why should I replace the anode rod?</b></p> <p>Your water tank would be corroded faster when the anode rod has been consumed. The tank is in danger of leaking water and you are in danger of being shocked!</p> <p><b>3.How long does the anode rod need to be replaced?</b></p> <p>1~2 years. It depends on the concentration of metal ions in water, the temperature, the contact area of water and exposed iron, the model of your water heater, and so on.</p> <p><b>4.What is the difference between magnesium anode rods and aluminum anode rods?</b></p> <p>Magnesium rods are more active than aluminum rods. It means that magnesium rods will be corroded faster but work & protect better.</p><br><p><b>Safety warning:</b></p><p>To extend anode life, drain water from tank whenever RV is not being used.</p><p>Avoid any extended time of non-use with water in tank.</p>