Understanding the Role of the Anode Rod

Anode rod in water heater

Corrosion is one of the top problems that homeowners encounter with their water heaters. Fortunately, water heaters have a built-in protection from corrosion, the anode rod. The anode rod is a feature of traditional water heaters that protect your tank from corrosion by wearing down first. The Plumbing Doc, local experts in water heater repair in Bakersfield, CA, explains what you should know about this important feature below:

What is an Anode Rod?

An anode rod is a wire with magnesium, aluminum, and aluminum/zinc alloy wrapped around it. These substances help curb the corrosion of the lining of the water heater tank by attracting sediments and corrosive elements. The anode rod should be inspected regularly after water heater installation to ensure that it stays in great condition.

Why are Anode Rods Important?

The minerals in the water may contain corrosive elements due to the dissolved oxygen. An anode rod protects your water heater from corrosion by attracting these damaging minerals. If you have a tankless water heater, your unit likely won’t have an anode rod since this is a feature of traditional, tank-based heaters. Additionally, tankless units are less prone to corrosion.

When Should You Replace an Anode Rod?

Regular water heater services and maintenance will help keep your heater and anode rod in good condition. That said, if your anode rod has worn down, it’s important to replace it right away to maintain your water heater’s protection. There are several things that can affect how long your anode rod lasts, such as the type of water your home has, how well you maintain your water heater, the type of anode rod in your unit, and how much hot water your household uses.

By maintaining and replacing your anode rod as needed, you can avoid premature water heater replacement due to corrosion. For quality and reliable water heater services, look no further than The Plumbing Doc. Contact us today to schedule an appointment.



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