How Often Does an Anode Rod Need to be Replaced?

Decaying is the main sign that shows your anode rod has less time in its hands. It needs to be replaced as fast as possible. Otherwise, you’ll be no late to notice some of the corrosion due to harmful elements.

Typically, an anode rod needs to be replaced within three to five years. Though this hugely depends on the quality of the rod, changing an anode rod before 5 years helps to keep your water tank safe and secure.

According to Improvewarrior.Com, this time may vary significantly. Thus proper inspection of anode rods at regular intervals is necessary. If you can ensure this properly, hopefully, your water tanks will remain fit and fine at least for two decades.

But in case you need replacement of the anode rods, we are here to guide you. This whole segment outlines the lifetime of an anode rod and how to replace it when you find it of no use.

Swipe down below to know more.

How to Replace Anode Rod?

Don’t think replacing an anode rod is troublesome. Well, knowing the proper steps and techniques, it can be fun and quick. And for that, We must say you are at the correct spot.

Move down to get step-by-step instructions on installing the sacrificial anode rod.

Step 1: Turn off the water

First thing first, turn off the circuit breaker before experimenting with anything. You can also try shutting down the thermostat. Following these measures can ensure proper protection.

We suggest you turn off all the power supply, including the valves. Also, do not forget about the pumps.

Step 2: Detecting the anode rod

Usually, to find the anode rod, you should look at the top of the water tank. There is a massive chance that you’ll get there what you want.

However, skimming the user manual is a good idea if you find nothing. A manufacturer’s website will also do. Just see the water tank diagram, and you’ll find the location of the anode rod there.

Step 3: Remove water out

To remove the water, you need a garden hose attached to the bottom of the water tank. It is a good practice to remove nearly 10-15% of the water from it. Notwithstanding, if you have sidewise anode rods, a more considerable proportion of water may need to be removed.

Remember one thing before draining the water. Open the drain valve and hot water valve. Additionally, cooling the hot water also makes the process faster and easier.

Step 4: Separate the rod

While replacing the rod, you have to use the wrench. You can also use a socket to tighten it. This way, the threads become loose, and the removal becomes painless.

Here’s another protip – stay far away from the penetrating liquids. This can hugely contaminate the water quality.

Step 5: Insert the rod

The main action is here. Install a new rod to your water tank. You can take professional help, but a general manual can solve this.

Despite myriads of anode rods in the market, we think the best ones are magnesium anode rods. Try them out and get the best experience of a lifetime.


1.    How do you know when to replace an anode rod?

The first sign is that you will see your anode rod being chewed up. Other than that, one of the common alarming signs is getting the rotten egg smell back in the water. Identifying this can save you from a series of troubles.

2.    Can an anode rod cause a rotten egg smell?

Anode rod can never cause a rotten egg smell. Instead, they mitigate the odor. These disgusting smells are often due to the bacteria which exist in water.

3.    How long does a water heater anode rod last?

A water heater usually lasts three to five years, depending on your maintenance. We can assure you that with proper care, not only the rod persists, but also the water heater lasts for years after years.


So, friends, we hope you got the answer to the most commonly asked question – how often does an anode rod need to be replaced. Plus, we tried to provide you with a dose of knowledge of the world of anode rods.

If this helps, don’t forget to share your experience with us and leave your comments. We’ll be waiting for your reply.

Have a nice ahead. Best of luck!

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