Water heater anode rods are one of the most important internal appliance items in a home. It’s a long metal rod, made of magnesium or aluminum, which extends through the tank’s interior. The anode rod helps to protect the metal lining inside of your water heater tank to prevent explosion or corrosion over time.
It is called the sacrificial anode as it “sacrifices” itself to extend the life of the water heater. Most water heater manufacturers recommend inspecting the condition of the sacrificial anode every one to three years and replacing it when it has been consumed more than 50%. This is especially true if you have hard water or use a water softener.
So how does the anode rod relate to the water softener? Basically, the water softener operates by replacing minerals that make the water “hard” such as calcium and magnesium with sodium. Softened water accelerates the deterioration of the sacrificial anode rod in your water heater. Once the anode rod is gone, the water will begin corroding the tank itself and that will eventually lead to tank failure.
This doesn’t mean that you shouldn’t install a water softener or consider getting rid of the one you have. Just remember to replace your anode rod every few years to save money and prevent a water heater from bursting. We also encourage you to keep up with your annual flushing of your water heater. This is good for your water heater whether you have a water softener or not.
To schedule a water heater maintenance check, call Kowality Plumbing at 602-653-9230.
