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09-22-2019, 01:10 PM
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#1
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Montana Fan
Join Date: Sep 2006
Location: Kent
Posts: 295
M.O.C. #6300
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New anode for my 2014 Monty
My Monty is not close by so I can't check what size my anode is. Is 9 1/4 our standard size for replacement?
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09-22-2019, 03:41 PM
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#2
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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Yes, another determination based
on your specific usage, is to use magnesium or aluminum.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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09-22-2019, 11:00 PM
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#3
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,774
M.O.C. #12947
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I just replaced our anode in our 12 gallon Suburban water heater. The anode I use is the Suburban magnesium anode, part #232767. The photo below is what our anode looked like after one year. We do have a water softener, so do not know how much that affects the life of the anode.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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09-23-2019, 08:06 AM
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#4
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,361
M.O.C. #6433
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My original magnesium wore out so fast I replaced it with an aluminum one. After 2 years that one still looked almost new, as if it was not doing much of anything. Went back to the magnesium rod.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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09-23-2019, 08:45 AM
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#5
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,669
M.O.C. #9969
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Because of CRS, I don't recall all the details, but I thought I remember reading somewhere that one type of Anode rod is for Glass Lined tanks, while the other for Steel tanks, but don't quote me.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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09-23-2019, 09:50 AM
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#6
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Montana Master
Join Date: Dec 2017
Location: Mountain Home
Posts: 863
M.O.C. #20949
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Good explanation from makers of the Suburban RV water heater.. Now Airxcel
https://youtu.be/UiaNW2bXeT8
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09-23-2019, 10:30 AM
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#7
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,774
M.O.C. #12947
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Quote:
Originally Posted by mhs4771
Because of CRS, I don't recall all the details, but I thought I remember reading somewhere that one type of Anode rod is for Glass Lined tanks, while the other for Steel tanks, but don't quote me.
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There are only two types of tanks for conventional RV water heaters, aluminum like what is in the Atwood models, and steel like what is in the Suburban water heaters. The aluminum tanks do not use an anode, and the steel tanks are coated with a porcelain glass material which is referred to as 'glass lined', and these tanks need an anode because as the unit cycles from cold to hot, tiny cracks start developing in the glass lining and the only way to prevent the steel from corroding is to have a sacrificial anode inside that will erode away which keeps the tank from rusting.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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09-24-2019, 05:53 AM
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#8
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Montana Fan
Join Date: Apr 2012
Location: Alexandria
Posts: 352
M.O.C. #12394
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Remember, if your anode rod looks like rohrmann's did (and most will), flush out your hot water heater well when replacing it. All of the parts of that rod are creating a sludge in the bottom of your tank. You will be amazed if you have never done it. Takes 5 min. If you don't have water where it is stored, put a sticky over your water heater switch to do it next trip before turning it on.
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2013 F350 SRW King Ranch
2011 3400RL
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09-25-2019, 03:47 PM
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#9
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Montana Master
Join Date: Dec 2017
Location: Mountain Home
Posts: 863
M.O.C. #20949
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Standard size anode rod dimensions for Suburban water heater
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