Frequently Asked Questions
Q. What is a sacrificial anode?
A. Sacrificial Anodes are highly active metals that are used to prevent a less active material surface from corroding. Sacrificial Anodes are created from a metal alloy with a more negative electrochemical potential than the other metal it will be used to protect.
Q. How do you remove the anode rod from a water heater?
A. Even with a breaker bar, it can be nearly impossible to break the anode rod free. Turn off the power or gas. Then close the cold-water valve at the top of the tank and drain off several litres. Loosen the hex head with the impact wrench, but unscrew it the rest of the way by hand.
Q. How do you drain a hot water heater?
A. Begin by turning off the power or gas to the water heater. Next, turn the cold water supply valve off that allows water to flow into the heater. Hook a garden hose to the drain valve at the bottom of the tank or if one isn’t present, put the hose in the tank itself and run it outside on the ground. Open the drain valve where the hose is attached and drain the tank.
Q. What does an anode do in a hot water heater?
A. The anode rod is screwed into the top of your water heater and protects your water heater from rusting. When the tank is filled with water the anode rod sacrifices itself to protect the exposed steel of the water heater, through a method called electrolysis.