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06-16-2015, 02:25 AM
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#1
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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Replacing anode rod in hot water tank
Replaced the anode rod many times on my 2005 Monty, but now we have a 2015. Had to drain the tank because we won't be using it for a couple of months. I was surprised how much erosion we had in the new anode rod after 1 moths camping in our usual CG that we have been using for several years. My 2005 never showed this much erosion of the rod so fast. Is it possible that I was installing the rod on the 2005 the wrong way? I always used a couple turns of Teflon tape and a little pipe dope when I would insert the rod. Do you folks do anything different? I know the rod protects the tank, but such a difference between my 2005 and the new 2015 Montana.
__________________
Bob and Nancy Kassl Fall Creek, Wisconsin
2015 Montana 3440RL Legacy Edition, G614's, Pressure Pro TPMS, Dish Tailgaters
2016 GMC Sierra Denali 3500 CC SRW, Iridium Metallic, Duramax Allison Transmission
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06-16-2015, 03:13 AM
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#2
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Montana Master
Join Date: Oct 2007
Location: silver creek
Posts: 1,507
M.O.C. #7770
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The teflon would not be an issue. The rod reacts to the water. Did the campground change anything in there system? Did they have a treatment problem? Or maybe, Keystone did what they do best,find an outfit that had the cheapest rod to save a penny.I would just see what happens to the replacement rod, or ask the campground,if they will tell you if there were any changes to their system.
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06-16-2015, 03:17 AM
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#3
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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I can rule out the water, the CG has been on city water for the last 8 years or so. Thanks.
__________________
Bob and Nancy Kassl Fall Creek, Wisconsin
2015 Montana 3440RL Legacy Edition, G614's, Pressure Pro TPMS, Dish Tailgaters
2016 GMC Sierra Denali 3500 CC SRW, Iridium Metallic, Duramax Allison Transmission
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06-16-2015, 04:56 AM
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#4
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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My first thought would be a cheap rod, our original didn't last like the replacements have. If that isn't the answer, don't discount the water. City's change water treatment methods and even sources and drought or flooding can affect the amount of dissolved minerals in that water.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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06-16-2015, 05:20 AM
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#5
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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I bet you are right about the quality of the anode rod. By the way do you use Teflon tape and or pipe dope when you install the new rod?
__________________
Bob and Nancy Kassl Fall Creek, Wisconsin
2015 Montana 3440RL Legacy Edition, G614's, Pressure Pro TPMS, Dish Tailgaters
2016 GMC Sierra Denali 3500 CC SRW, Iridium Metallic, Duramax Allison Transmission
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06-16-2015, 05:51 AM
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#6
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Teflon tape ... works well ... less messy
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06-16-2015, 06:06 AM
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#7
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Montana Master
Join Date: Oct 2007
Location: silver creek
Posts: 1,507
M.O.C. #7770
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I don't use anything normally. Has never leaked, I pull it after every trip to drain tank,so far,so good
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06-16-2015, 06:30 AM
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#8
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Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
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There are 2 rods available. Magnesium and Aluminum. The normal replacement rods are aluminum.
My '14 new OEM rod was eat up good in just a year. I believe it was a magnesium rod. The replacement rod (aluminum) looks good after a couple of seasons.
Jim
__________________
2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's
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06-16-2015, 07:07 AM
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#9
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,702
M.O.C. #12947
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The Suburban owners manual lists the anode rod as part number 232767, which is a magnesium rod, and is what these water heaters come with from Suburban. I think I remember reading somewhere that an aluminum rod can be used if the magnesium rod continues to erode faster than in one year. Ours seems to last the one year, so my annual maintenance to the water heater includes a new anode when I drain and flush the tank. I use Teflon tape on the threads of the anode and have no problem removing the anode annually.
The following is from the owners manual:
The tank in this water heater is protected by a magnesium or aluminum anode to prolong the life of the tank by absorbing the corrosive action of hot water. Under normal use, the anode rod will deteriorate and because of this, we recommend it be replaced yearly. NOTE: W ater with high levels of iron and/or sulfate will increase the rate of deterioration; therefore, more frequent replacement may be required. If anode rod is mostly eaten away, replace it with a new one. (See
Figure 11)
To prevent a water leak when replacing the anode rod, a pipe thread sealant approved for potable water (such as Teflon Tape) must be applied to the threads of the anode rod. Proper application of a thread sealant will not interfere with the anode’s tank protection.
Operating the water heater without proper anode protection will decrease tank life and will void your warranty on the tank. NOTE: Tank is drained by removing anode rod (See “Drain and Storage” instructions).
To extend anode life, drain water from tank whenever RV is not being used. Avoid any extended time of non use with water in tank.
Also, refer to section on winterizing.
WARNING! Do not replace the anode rod with any non-Suburban
accessory part, such as an “add-on” electric heating element. Items such as these are not approved to be installed in Suburban products. They could create an unsafe condition and will also void all warranties.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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06-16-2015, 01:02 PM
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#10
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
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I replaced my home water heater a few months ago. During my research, I think I read that there are actually 3 kinds of rods. The two mentioned and a third kind. I am too lazy to look up what it is though!
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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06-16-2015, 03:16 PM
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#11
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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Thanks for all the good information, I probably was doing the right things on my 2005, just maybe the rod that came with it was OEM and not the best quality.
Happy Camping
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06-16-2015, 07:37 PM
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#12
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Montana Master
Join Date: Oct 2013
Location: Ogden
Posts: 638
M.O.C. #13862
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I would be more concerned if there was NO or LITTLE corrosion! This is a sacrificial rod that corrodes so your tank won't. If something is corroding, I want it to be the anode rod, not my water heater. Even if I had to replace it every 2 years!
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06-17-2015, 01:19 AM
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#13
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Montana Master
Join Date: Mar 2011
Location: Okeechobee
Posts: 2,150
M.O.C. #11206
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Hi
Knowing the quality or lack of quality from Keystone I would have an electrician not an RV service person check your unit to make sure Keystone hasn’t mixed up the neutral and ground somewhere.
Our unit was so improperly wired that we found 90V ac on the dc system when all dc sources were removed from the trailer. This was corrected by separating the ac and dc wired where they had been bundled together. The selling dealer was totally unable to even begin to check for this problem or correct it they didn’t even have a VOM in the shop. I had a home electrician help me with this one.
After correcting this problem my heater anode now last several years at a time but I do find on the annual inspection that some years the anode is greatly deteriorated and other years it has very little deterioration. My electrician says I have been in a park somewhere that has their neutral and ground reversed.
Phil P
__________________
2009 Montana 3665RE
2009 Duramax 3500 DRW quad cab
personal web page https:// www.sallyscoffees.com
If you get a page not available then remove the "s" after HTTP
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06-18-2015, 04:45 PM
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#14
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Montana Master
Join Date: Dec 2005
Location: Eugene
Posts: 1,053
M.O.C. #5091
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Replaced my anode rod with an aluminum rod, and it shows little wear after 3 1/2 months in Arizona. My tank needs to be flushed out again which I do several times a year now with the tool from Camping World.
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06-19-2015, 11:18 PM
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#15
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Montana Master
Join Date: Mar 2011
Location: Okeechobee
Posts: 2,150
M.O.C. #11206
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Quote:
quote:Originally posted by bigred715
Replaced my anode rod with an aluminum rod, and it shows little wear after 3 1/2 months in Arizona. My tank needs to be flushed out again which I do several times a year now with the tool from Camping World.
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Hi
Aluminum oxide the results of cording aluminum is one of the most toxic poison around. I would never use it on or in anything that I may ingest.
Zink on the other hand is fairly benign.
Phil P
__________________
2009 Montana 3665RE
2009 Duramax 3500 DRW quad cab
personal web page https:// www.sallyscoffees.com
If you get a page not available then remove the "s" after HTTP
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