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04-19-2021, 05:11 PM
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#1
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Member
Join Date: Aug 2020
Location: Jacksonville
Posts: 39
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Anode Rods
How often should we change out the anode rod in our hot water heater. We bought a new rv last fall and take one weekend a month to go rving.
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Bryan & Diana, happily married for 36 years
Fur babies, Dudley(RB 6/16/23), Daisy & Denver
2020 Avalanche 313RS
2022 F-350, 4x4 dually
Jacksonville, TX
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04-19-2021, 05:21 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,317
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Depends on the quality of the water. I would at least check it once a year, either at the end of camping season or the start, your choice. If it is less than 50% change it.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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04-19-2021, 08:14 PM
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#3
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Senior Member
Join Date: Mar 2021
Location: Owosso
Posts: 213
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I check it annually. As Chuckster mentioned, a LOT will depend on water quality and amount of use. Honestly, for $10-15, it’s a cheap annual replacement item really.
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Joe & Mary
2015 F350 XLT CCLB SRW 6.7 PS
2018 Cougar 344MKS
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04-20-2021, 05:28 AM
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#4
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Member
Join Date: Aug 2020
Location: Jacksonville
Posts: 39
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Thanks, read about them in the camping world highways magazine. It put this on our checklist!
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Bryan & Diana, happily married for 36 years
Fur babies, Dudley(RB 6/16/23), Daisy & Denver
2020 Avalanche 313RS
2022 F-350, 4x4 dually
Jacksonville, TX
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04-20-2021, 05:34 AM
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#5
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Site Team
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,741
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OI keep a new one in a bag with a small roll of Teflon tape. I drain the tank if we're not using it for more than about 3 weeks. When I pull the anode if it's substantially deteriorated then it's time to flush the tank anmd replace the anode. Then I order a new anode and put that one away for the next time. Good thing is the cost, weight and size are minimal.
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Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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04-20-2021, 05:47 AM
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#6
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Senior Member
Join Date: Mar 2014
Location: Mountain Home, Idaho
Posts: 3,007
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Since you’ve indicated you take the RV out for 1 weekend a mknt( and it sits the rest of the time I would take five minutes when at home and pull anode rod and drain and rinse water heater tank, inspect the anode, apply some Teflon tape and reinstall anode rod
Leaving the tank sitting full of water when not being used can cause other issues you don’t want.. such as foul smelling water..
If you remove the anode and drain and wash out tank after those one weekend a month trips that anode should easily last a full year and your water heater will be much happier...
A good video by Airxcel regarding the anode rod...
https://youtu.be/CO3XnDkJ1wU
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2007 GMC Classic club cab 4x4 Duramax LBZ
2014 Alpine 3010 RE. 34 foot fifth wheel
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04-23-2021, 03:35 PM
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#7
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Member
Join Date: Aug 2020
Location: Yukon
Posts: 88
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My 5er is a 2019 and I replaced it today. It was about 50% gone. I think it’s recommended to change them once a year.
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04-23-2021, 03:58 PM
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#8
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Senior Member
Join Date: Jan 2013
Location: Indiana
Posts: 2,705
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You change them when they wear down and you can see the wire metal rod in the middle. Then you change them for a new one. If you empty your water heater after every trip, or when in storage, you'll be pulling the rod to empty the water heater. Over time, yoiu'll see it erode down to the metal core. As stated, change it when you see the metal core, as ugly as they are, they are OK and doing their job. Once down to the wire core, they are done.
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2019 Montana High Country 375FL
2014 Chevy Duramax HD 6.6 - 3500 Diesel Dully Long bed Crew Cab
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04-23-2021, 04:08 PM
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#9
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,979
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Suburban recommends replacing when 25% of the original anode size remains.
Here is a drawing of what to expect over the time the anode is in use. The two "worn anode rods" are at about 25% remaining and should be replaced. If your anode rod has more material than this, it's OK to continue to use it, but keep an eye on it as it won't last for a full season in "bad water conditions".
There is no reason to be concerned that the anode will "break and fall into the water heater". The way it's constructed that is extremely unlikely to happen.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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