The Tank › Anode Rod Passivation Question
- February 28, 2018 at 3:59 pm #24206
Situation: Moved into my current house approximately 5 years ago. Never had soft water. There was a non-functioning, broken water softener on the side of the house, but I didn’t hook it up or repair it. The city water supply is definitely hard.
The water heater I inherited is a direct vent Ruud, manufactured in 2010. According to the manufacturer, it had a six year warranty. It has only the original manufacturers anode, which in Ruud’s case, is a non-accessible magnesium anode, with no “bump” on the hex head.
There was no aftermarket combination anode rod installed.
I decided to check the status of the anode rod, so I cut through the sheet metal top to gain access to it.
Upon pulling out the anode (partially, due to lack of overhead clearance), to my untrained, inexperienced eye, it appeared that this anode was not sufficiently corroded. I assumed that the anode rod would be very corroded. Instead, it appears to be pretty clean and non-corroded, for being in hard water for about 8 years.
Question: Is this anode rod passivated?
I am attaching photos to assist in diagnosing this.
Thank you.February 28, 2018 at 4:01 pm #24207
Top ViewFebruary 28, 2018 at 4:02 pm #24208
Anode coming out.February 28, 2018 at 4:03 pm #24209
Anode Rod.February 28, 2018 at 4:04 pm #24210
Anode Rod 2February 28, 2018 at 4:06 pm #24211
Anode Rod 3February 28, 2018 at 6:46 pm #24212Larry WeingartenParticipant
Hi, It looks at least partly passivated to me. The resistor in the top of the anode seems to work a bit too well. After eight years in hard water it should be largely gone. I’d replace it with a non-resistored, flex anode after having a look around the tank and in the combustion chamber to make sure there isn’t already a leak. 😎
Yours, LarryFebruary 28, 2018 at 7:04 pm #24213
The flex anodes you sell are non-resistored, correct?February 28, 2018 at 7:04 pm #24214February 28, 2018 at 8:34 pm #24215Larry WeingartenParticipant
Hello, Randy can answer that better than me, but I’m quite sure they have no resistor. 😎
Yours, LarryFebruary 28, 2018 at 9:46 pm #24216Randy SchuylerKeymaster
That is correct.
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