What Is a Water Heater Anode Rod and How Does It Work? Anode rods are a long metal rod, usually made from magnesium, aluminum ...

Watch zinc filled pennies (after 1983) to make sure the HCl doesn’t get to the zinc and dissolve it. Stir NaOH/Zn mixture with a glass rod. Zn will clump up on the bottom of the crucible in the NaOH.