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Rmack1's avatar
Rmack1
Explorer
Dec 23, 2014

Water heater anode rod change frequency

I understand that you are suppose to change your WH anode rod every year under normal circumstances. I learned that lesson the hard way.

Ever since, I've put nothing but softened water into my tank. I think once I let the regen cycle go until I read just a little above the least amount of contaminates color. I fixed that fast, and have used only softened water that tested at or very near the lightest (best) of the test strip colors.

It's been about a year since I put in a new anode rod. Do you think I could get away with a little more before changing it again, since it shouldn't have had to be working that hard?

25 Replies

  • GordonThree wrote:
    I buy a new anode rod and cheapy inline carbon filter once a season... the rod is like $8 and the cheapy filters are usually on sale for less than that. inexpensive insurance in my opinion


    I have a filter, which I recently replaced. It's built-in. Does that help with anode rod life?
  • Old-Biscuit wrote:
    Check the condition of anode rod twice a year..replace as needed (when 75% has been consumed)

    There is NO schedule that can be followed other than a visual schedule.

    Water softener can increase rate that anode rod dissolves.

    Should be draining/flushing water heater at least twice a year regardless.


    The softened water increases the rate the anode rod dissolves? I thought it pulled minerals from the water, which the softener removed before hand. Is that wrong?
  • Don't replace by time, replace by condition..
    I put a new one in at about 50% or even sooner. They are very inexpensive.

  • I buy a new anode rod and cheapy inline carbon filter once a season... the rod is like $8 and the cheapy filters are usually on sale for less than that. inexpensive insurance in my opinion
  • Check the condition of anode rod twice a year..replace as needed (when 75% has been consumed)

    There is NO schedule that can be followed other than a visual schedule.

    Water softener can increase rate that anode rod dissolves.

    Should be draining/flushing water heater at least twice a year regardless.

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