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09-26-2024, 10:29 AM
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#1
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,757
M.O.C. #30417
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Suburban water heater anode replacement
I pulled and inspected the anode rod yesterday. It obviously needs to be replaced. My question is the replacement rods I see online are substantially larger in diameter. Was my anode that large when new?
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Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, 720 watts Solar, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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09-26-2024, 11:09 AM
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#2
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,410
M.O.C. #6433
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Yes, a new one is larger than that one.
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Bill & Patricia
Riley, our Golden. R.I.P.
2007 3075RL (recently sold, currently without)
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09-26-2024, 11:33 AM
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#3
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,840
M.O.C. #4831
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That looks like it has 40+% left. But as long as it is out, go ahead and change it. They are inexpensive.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-26-2024, 06:55 PM
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#4
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,757
M.O.C. #30417
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Quote:
Originally Posted by Carl n Susan
That looks like it has 40+% left. But as long as it is out, go ahead and change it. They are inexpensive.
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So are you telling me that rod was bigger? Holy crap Carl, I had no idea. 5 trailers out of 7 that had a water heater and I never touched the anode rod....
I thought it was small and collected crap.
__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, 720 watts Solar, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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09-26-2024, 07:03 PM
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#5
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,410
M.O.C. #6433
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When you install a new one don’t over tighten it. They have 3/4” NPT pipe threads which are basically self sealing. Two wraps with Teflon tape, snug it in, and maybe another quarter to half turn with a ratchet/socket.
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Bill & Patricia
Riley, our Golden. R.I.P.
2007 3075RL (recently sold, currently without)
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09-27-2024, 08:11 AM
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#6
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 577
M.O.C. #21685
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I replace ours once a year with the heating element as well, use Mg rod not the Alum. and flush the tank.
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09-27-2024, 11:59 AM
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#7
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,840
M.O.C. #4831
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Quote:
Originally Posted by Kyle and Lisa
I replace ours once a year with the heating element as well, use Mg rod not the Alum. and flush the tank.
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I understand changing the anode, but why the heater element that frequently? I still have the original element in my 2012 Montana. And before someone asks, yes, it works.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-27-2024, 07:19 PM
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#8
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,410
M.O.C. #6433
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The heating element in my 2007 was still good after 14 years.
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Bill & Patricia
Riley, our Golden. R.I.P.
2007 3075RL (recently sold, currently without)
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09-29-2024, 11:10 AM
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#9
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 577
M.O.C. #21685
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I have seen the heating element impacted or coated with deposits, so I replace it while doing yearly maintenance, $7-$8.00, it's cheaper than the anode rod, peace of mind.
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09-29-2024, 04:42 PM
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#10
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Montana Fan
Join Date: Apr 2021
Location: everywhere, USA
Posts: 312
M.O.C. #28634
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Don't forget to flush the water heater as all of the sediment that came off the anode is in the bottom of the hot water tank. We fulltime and replace it annually, it is truly amazing how much sediment is in the bottom of the tank! And use plumbers Teflon tape on the threads when installing the new anode. I bought a flushing wand off Amazon also, that is the easiest way to get it clean inside.
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2021 Montana 3761FL, 11.5kw LIFPO4 batteries & 1700 watts of panels w/ Multiplus II 3K inverter and 30amp DC to DC charger from truck. 8k Dexter axles w/ Kodiak disc brakes.
2019 6.7 diesel F350 DRW with Banks derringer and 4"exhaust, airlift bags, 25k B & W Companion hitch, 45 gal. aux. diesel tank and 14k Winch, just in case!
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09-29-2024, 07:19 PM
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#11
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,757
M.O.C. #30417
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Quote:
Originally Posted by Todd & Mary
Don't forget to flush the water heater as all of the sediment that came off the anode is in the bottom of the hot water tank. We fulltime and replace it annually, it is truly amazing how much sediment is in the bottom of the tank! And use plumbers Teflon tape on the threads when installing the new anode. I bought a flushing wand off Amazon also, that is the easiest way to get it clean inside.
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Since this is my first time, I did what I thought made sense. I turned the valve to city water and pressurized the system. Then unscrewed the anode rod which blew out with such force that it flew 20 feet and so did the water. Me soaked and tank clean......
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Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, 720 watts Solar, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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09-30-2024, 05:05 AM
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#12
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,324
M.O.C. #25165
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My SIL did the same thing before I could stop him. Good thing you weren't standing in front of it. He had a nice round bruise on his torso for a while.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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09-30-2024, 09:50 AM
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#13
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,736
M.O.C. #2283
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Sounds like my wife. Years ago she checked the oil in the lawn mower while it was running. She only did that once.
Lynwood
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10-02-2024, 03:01 PM
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#14
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Montana Master
Join Date: Dec 2005
Location: Eugene
Posts: 1,076
M.O.C. #5091
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Lynwood, I'm surprised, you make your wife mow the lawn and service the lawn mower too! I flush the hot water tank every year and only changed the heating element once. Turned on the heating element before the hot water tank was full. Release the pressure on top of hot water tank before unscrewing anode rod or you will get a bath.
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10-03-2024, 08:55 AM
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#15
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 577
M.O.C. #21685
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I used to open the relief valve as well when servicing, but it does not always reseat as well as before and leaks and then needs to be replaced, now I use the outside shower hose to drain the water as well as the pressure and do the same when refilling to purge the air in the tank as it fills.
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11-10-2024, 07:31 AM
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#16
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Montana Master
Join Date: Jan 2018
Location: Northville, NY
Posts: 831
M.O.C. #21158
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I usually just shut off water and turn on "fill" to fresh water tank to relieve pressure.
Also if you use the cheap Camco flush tool beware. The first time I used mine the long tube blew off it and into the HW tank. Fortunately a lot of flush water was coming out and the tube came right out with it. I put a small hose clamp on it and now it's safe to use.
I now recommend this one:
https://www.amazon.com/Flusher-Power...9&sr=8-17&th=1
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Jim B
2017 Lariat F-350 FX4, CC, SB, 6.7 PSD 4WD
2018 MONTY 3731FL, at our private winter site in GA
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11-11-2024, 04:48 AM
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#17
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,324
M.O.C. #25165
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You got lucky. I had the same happen and the plastic end is still in my tank. I couldn't get it flushed out and can't even see it with the endoscope camera.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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11-12-2024, 07:09 AM
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#18
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Seasoned Camper
Join Date: Jan 2024
Location: Oklahoma City
Posts: 51
M.O.C. #33894
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Quote:
Originally Posted by mlh
Sounds like my wife. Years ago she checked the oil in the lawn mower while it was running. She only did that once.
Lynwood
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Yes, It only takes one time to learn that lesson !!!LOL
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JoeNJenn 2023 Montana 3231CK
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11-12-2024, 09:36 AM
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#19
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 3,080
M.O.C. #5651
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Sadly, some people repeat the same mistakes over and over! LOL (just a general comment not aimed at anyone on this thread)
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Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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