Can You Cut Water Heater Anode Rod?

Yes, you can cut your sacrificial anode rod, whether it is magnesium or aluminum, to replace it. To do this, use a pair of gloves and a saw and cut as you remove the old anode. However, when you cut the anode, make sure that the bottom part does not fall into the bottom of the tank, as you will not be able to pull it out.

In confined spaces, cutting the anode rod technique is often used. Make sure to dispose the old anode rod in a safe way and as per your environmental waste regulations in your municipality.

If you don’t have enough space and you are tired of changing the anode rod, you should install a powered anode. Only 12 inches long, this anode is made to last over 20 years.

cut the anode rod
Can You Cut Water Heater Anode Rod? 2


  1. Avatar Steven DeCicco on March 24, 2020 at 7:50 am


    Can I change the magnesium anode to an aluminum anode (in the hot water valve) and still install the corro protec (horizontally installed where the relief value was) .

    Currently i have an magnesium anode and i want to replace this with an aluminum anode + add the corro protec to get double caution as the well water has very high sulfur and a very noticeable odor.

    thanks s

    • Avatar Corro-Protec on March 24, 2020 at 12:50 pm

      Hello Steven,
      This is a very good question. You don’t need to remove or replace the original magnesium anode if you install the Corro-Protec on a Bradford White water heater. If you want to go ahead and do that, it will work fine too.

  2. Avatar Mary Hoberty on January 30, 2022 at 8:32 am

    Can you take the andoe rod out to stay i had 2 different ones put in and still a terrible oder in the water

    • Avatar Corro-Protec on January 31, 2022 at 10:00 am

      We suggest replacing one of the magnesium anode with a Corro-Protec powered anode rod. This will take care of the smell and the corrosion.

  3. Avatar Bobby Lee on April 27, 2022 at 11:08 am

    My AO Smith Promax 40 gallon propane water heater is 22 years old. We have well water so we use a water softener to treat it. My question is should I even bother to change the anode rod or just let run until it dies?

    • Avatar Corro-Protec on April 27, 2022 at 5:25 pm

      Replacing the anode would be the best thing to do to make sure you keep it for many years.

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