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09-30-2020, 01:37 PM
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#1
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Montana Fan
Join Date: Apr 2018
Location: Worthington
Posts: 147
M.O.C. #21597
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Suburban WH smell
On our last outing before heading south, there was a terrible smell in our water. Seems to be coming from the hot. What is the earliest way to clean the WH. I’ve already winterized so the heater is in bypass and empty. I’m thinking of removing the pressure release valve and flushing it out several times. Is there something I can put in and let set before I flush? The anode rod looks like it’s at least 80%, but I’ll be replacing it anyway. My Monty is a 2010 3400RL. Any tips would be appreciated.
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Bnrc73
2010 Montana 3400 RL
2011 F350 SD SRW 6.7 Diesel
Worthington MN
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09-30-2020, 04:20 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Usually that smell would indicate an anode rod problem. I wonder if the rod you have isn't a magnisium rod and that's the issue.
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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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09-30-2020, 05:44 PM
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#3
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Seasoned Camper
Join Date: Sep 2019
Location: Quartzsite, Arizona
Posts: 97
M.O.C. #24985
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Check YouTube, there is lots of good info showing you how to perform maintenance on your water heater.
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Kevin in Quartzsite, Arizona....It's an experience!
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09-30-2020, 10:51 PM
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#4
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,774
M.O.C. #12947
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This is copied from the Suburban manual:
ODOR FROM HOT WATER SYSTEM
Odor from the hot water system is not a service problem and many water supplies contain sufficient amounts of sulphur to produce an odor. The odor is similar to rotten eggs and is often referred to as "sulphur water". It is not harmful - only unpleasant to smell. Sulphur water can be caused by a chemical action or by bacteria. The solution to eliminate is chlorination of the water system. Add about six (6) ounces of chlorinated common household liquid bleach to each 10 gallons in the water tank. Then run the chlorinated water throughout the system, opening each faucet one at a time until you smell the chlorine. Let the RV sit for a few days and the chlorine should take care of the problem. Then you will need to take care of the chlorine. Remove the chlorine by flushing the system with fresh water. This may take several attempts. You may consider adding a filtering system that removes chlorine and prevents sulphur water. If the sulphur or rotten egg smell continues, flush the system once again as described above and replace anode rod as necessary.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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10-01-2020, 12:33 PM
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#6
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Montana Master
Join Date: Jun 2017
Location: Northern Illinois
Posts: 525
M.O.C. #19994
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I had the same problem, I read that magnesium anode was the cause and to replace with aluminum anode, no more smell.
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The "Black Pearl"-2017 3731FL Legacy Package
2017 F-450 Platinum, 6.7 PSD
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10-01-2020, 08:30 PM
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#7
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,366
M.O.C. #6433
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Quote:
Originally Posted by team bradfield
I had the same problem, I read that magnesium anode was the cause and to replace with aluminum anode, no more smell.
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I never had an odor, but my OEM magnesium rod eroded so fast I replaced it with an aluminum rod. After 3 yrs or so it still looked practically new. Didn’t seem to be doing a lot of protecting so went back to magnesium.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-07-2020, 01:47 PM
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#8
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Montana Master
Join Date: Jun 2020
Location: Qualicum Beach
Posts: 665
M.O.C. #26399
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Quote:
Originally Posted by Bnrc73
On our last outing before heading south, there was a terrible smell in our water. Seems to be coming from the hot. What is the earliest way to clean the WH. I’ve already winterized so the heater is in bypass and empty. I’m thinking of removing the pressure release valve and flushing it out several times. Is there something I can put in and let set before I flush? The anode rod looks like it’s at least 80%, but I’ll be replacing it anyway. My Monty is a 2010 3400RL. Any tips would be appreciated.
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Clean out as usual, then make a vinegar solution (find YT vid about that) and let it set for an hour or two with the heater on (DO NOT forget to turn off the electric heater before emptying the tank) If it's a recurring problem replace magnesium rod with aluminum.
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2018 Keystone Montana 3811MS
2017 Ford F450 diesel dually
600AH Battle Born Lithium Batteries, 1,080 watts solar
3,000 watt hybrid inverter with 120A charger
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10-07-2020, 02:01 PM
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#9
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Established Member
Join Date: Nov 2017
Location: Lethbridge
Posts: 11
M.O.C. #20870
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We had the same smell but it was only in the bathroom hot water taps. Flushing HW tank never fixed problem. Saw a link somewhere that noted if you have washer/dryer lines, they are connected to bathroom lines and if not used can cause bacteria build up in the dead lines. I flushed the unused washer water lines with bleach water mixture and cleared up the skunk smell.
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10-07-2020, 03:03 PM
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#10
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Established Member
Join Date: Apr 2019
Location: Seattle
Posts: 45
M.O.C. #23826
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We are having a terrible smell from the bathroom sink. We have cleaned the p-trap (not much in there) and flushed the washer (hot & cold) lines, since we don't have the washer. Thought that would clear it up, but last evening, there was that smell again. Would the anode rod be an issue for us?
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10-07-2020, 03:20 PM
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#11
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New Member
Join Date: Jul 2018
Location: Shakopee
Posts: 3
M.O.C. #22243
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Quote:
Originally Posted by brisam
We had the same smell but it was only in the bathroom hot water taps. Flushing HW tank never fixed problem. Saw a link somewhere that noted if you have washer/dryer lines, they are connected to bathroom lines and if not used can cause bacteria build up in the dead lines. I flushed the unused washer water lines with bleach water mixture and cleared up the skunk smell.
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We had the same problem and the smell was eliminated once the lines to the washer connection were rinsed and cleaned.
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10-07-2020, 06:09 PM
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#12
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Established Member
Join Date: Nov 2017
Location: Lethbridge
Posts: 11
M.O.C. #20870
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If smell is not in other sinks or taps I would say your smell is not coming from hot water tank. Try putting water from tap in glass and smell water to narrow the problem to the water or the sink.
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10-08-2020, 05:53 AM
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#13
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Established Member
Join Date: Jul 2019
Location: Boyers
Posts: 45
M.O.C. #24426
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Hi, we had this problem in the past. All I do is, take the supply line from campground, drain water out of hose and pour in Clorox antibacterial bleach. Then open faucets, closest to inlet first, until you smell chlorine coming out. Then I did all the rest the same way. Oh I forgot to mention, we had this problem when we first got our rig,(2010 3000RK) and after much research, found it was the washer lines, I cut lines and installed shut off valves, and never had this problem again. I guess the bleach is just preventable measure now. We don't like that smell and seems since I do this when we open up for the season, a quick bleach flush couldn't hurt. Good Luck, and Happy Trails to You.
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10-08-2020, 08:57 AM
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#14
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Montana Fan
Join Date: Mar 2005
Location: Highlands Ranch
Posts: 464
M.O.C. #3477
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Previously owned motorhome and our Montana both did this if not sanitized the beginning of each season. Bought some commercial cleaner from CW once, but found the chlorine method totally effective each spring. Pump the mix into the whole system, let sit for a few hours, then drain and flush with fresh water. Done. Can't imagine having to leave it for days.
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10-08-2020, 01:26 PM
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#15
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Established Member
Join Date: Jul 2019
Location: Boyers
Posts: 45
M.O.C. #24426
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Sorry didn't mean it to sound like you needed it to stay in for days, we would do it when we opened up for the season and flushed it the next day.
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10-08-2020, 01:50 PM
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#16
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Montana Master
Join Date: Aug 2020
Location: Keller
Posts: 525
M.O.C. #26851
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Here is the formula I have seen recommended, and I use it with great successes. 1/4 cup bleach for every 15 gallons of water. Let it sit 24 hours. Flush with fresh water well. You are done. I sanitize at least once a year, but usually every 6 months. When calculating your gallons don’t forget the water heater and don’t bypass it. Drain hot water tank. With my rig I am able to run a tube through my overflow into my fresh water tank. I’ll fill fresh tank 1/3 full, add bleach amount to 1 gallon milk jug of water, then feed water with funnel into fresh tank. Fill fresh tank. Fill water heater from fresh tank using your water pump, not city supply. Run each faucet, hot and cold , and toilets until you smell the bleach. No need to turn on hot water heater, just let bleach water run through hot water lines. Let it set 24 hours. Drain fresh tank and water heater. Refill both with City water. Flush faucets and toilets well with fresh water using your pump. If you cannot smell any bleach after a good line flush you are good to go. You can flush tanks and lines twice if you want but I find its not necessary. What LITTLE bleach that might be left in the lines will not hurt you as it is probably less that what the city puts in their water.
I haven’t had any issues with the washer lines but draining and installing shut off valves sounds like a great idea. Ends that problem.
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10-18-2021, 01:51 PM
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#17
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Montana Master
Join Date: Jun 2017
Location: Northern Illinois
Posts: 525
M.O.C. #19994
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Quote:
Originally Posted by team bradfield
I had the same problem, I read that magnesium anode was the cause and to replace with aluminum anode, no more smell.
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well that didn't work, aluminum anode was worse then the mag. I've been at this over 20 years, I have never seen a rod look like this, see date of OP, I just installed this about 2 months ago, Sulphur smell has returned
__________________
The "Black Pearl"-2017 3731FL Legacy Package
2017 F-450 Platinum, 6.7 PSD
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10-18-2021, 05:49 PM
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#18
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,366
M.O.C. #6433
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If you used an aluminum only rod, try using an aluminum zinc rod. Supposedly the zinc will stop the odor. Must be true, internet says so. Never had that odor so never tried one.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-18-2021, 09:06 PM
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#19
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Montana Master
Join Date: Feb 2006
Location: Denver
Posts: 1,049
M.O.C. #5329
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The smell tou are experiencing is due to bacteria in the hot water tank. I always put a capful or so of bleach in the tank before filling it the first time, and it eliminates the smell.
As for the anode rod, mine always looked like that. I just scrape off the residue and keep on truckin’.
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10-19-2021, 09:13 AM
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#20
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 571
M.O.C. #21685
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We replace the mag. anode rod once a year and the heating element also at the same time and flush tank. I buy the heating element at Lowe's for about $6.00 . The alum. rod does not work as well as the mag. rod for tank protection.
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