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Forums > Green Building Technologies > Geothermal Heat Pumps > Subject: really bad sulphur smell hot water geo heated

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mary tUser is Offline
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01/14/2008 5:51 AM  
i had just had a geocomfort serenity system installed with a new hot water tank the hot water smells bad i can hardly stand washing dishes in it ,is there any way to get rid of the odor . my cold water doesn't smell.
AltonUser is Online
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01/14/2008 8:10 AM  

Mary T,

Does the hot water smell like rotten eggs (Hydrogen Sulfide)?  Does your water heater use natural gas (Hydrogen Sulfide)?  Do you use water from a well?  If you use city water, then check with the city.  Made any other changes to the home lately?  Give us more details.


Alton C. Keown
Residential Designer and Construction Technology Consultant
Auburn, Alabama
334 329-0957 AT&T Cellular
gregjUser is Offline
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01/14/2008 1:13 PM  
Yes Mary, tell us more. Is this new construction? If old, what was kind of hot water system did you have previously that didn't smell? Does your new hot water tank have an anode rod? Did your old one?
mary tUser is Offline
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01/15/2008 8:00 AM  
115 year old farm house ,using well for water i never had a problem with the old water heater it ran on propane, the new on runs from geocomfort serenity complete package system 6 ton dual stage it uses electric as back up , i have 6 vertical loops
the house is about 2,550 feet with a basement
i notice as its getting colder out the water is getting hotter ,and doesn't smell as bad as when it was a little over just barely warm . worried when the temp warms up outside it'll be really bad smell again
AltonUser is Online
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01/15/2008 8:36 AM  
Mary T,

We are still trying to think about this problem. If you heat cold well water on the stove, is there any odor? If so, then test the well water. If too much sulfur, etc. is in the water, then you may need a whole house water filter. If the water is free of sulfur, etc, then the problem must be in the recent plumbing/HVAC changes. What is the brand name of the water heater? Most water heaters, maybe except Marathon, use an anode rod. Ask your HVAC/plumber whether your tank has an anode rod or should have one. Ask your neighbors that are on wells if they ever had this problem. Can you describe the odor? Can you think of any other changes that were made recently that ties in with the water system. Be sure to post on this forum if the solution is found to this problem. We all could benefit from this knowledge.

Alton C. Keown
Residential Designer and Construction Technology Consultant
Auburn, Alabama
334 329-0957 AT&T Cellular
mary tUser is Offline
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01/15/2008 9:24 AM  
smell really strong like sulphur my grand daughter says it smells like the gates of hell have opened ,the only work done recently was the geothermal system completed dec.31 , last time the well was tested it had a high nitrate content so i don't use it for cooking ,i have young grandchildren their doctor said drinking it would be bad for them,so i just use the well water for bathes ,dishes,and washing clothes , we are surrounded by farm fields lots of fertilzer use during the year
gregjUser is Offline
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01/15/2008 11:38 AM  
I had the same issue with my well water. The cold water was fine but the hot water had a strong rotten egg/sulfer smell. It was especially noticeable when the hot water hadn't been used for a while - like overnight. The problem was that the manganese (probably a manganese in my well water was reacting with the anode rod in my water heater and releasing hydrogen sulfide gas(the rotten egg odor). I switched to a brand of water heater that did not have an anode rod and the problem was solved.

Ask your installer if there is an anode rod in your water heater and if it can be removed. The anode rod is in there to protect the water heater. Basically it corrodes instead of your tank. So removing it will probably void your warranty.

A water softener may help by eliminating the manganese from the water before it enters the water heater.
hedgehogUser is Offline
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01/19/2008 8:20 AM  
not sure about the rules of posting brand names but there is a electric water heater on the market that has no anode rod, the tank is made of plastic so there is no need for one, these tanks are also guarenteed for the life of your house.
AltonUser is Online
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01/19/2008 10:14 AM  
If anyone needs to know the brand name of the plastic-lined, superinsulated water heater, then e-mail me:  alton AT auburn dot edu.  Since we are not supposed to post our e-mail addresses on this forum, then make the appropriate substitutions as needed to my address for the AT and dot.  I think we all should review the forum rules about posting e-mail addresses.  Maybe it will help hold down the SPAM on this server and also at our end.

By the way, I do not sell any products but I do donate much of my time to help my fellow man.

Alton C. Keown
Residential Designer and Construction Technology Consultant
Auburn, Alabama
334 329-0957 AT&T Cellular
gregjUser is Offline
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01/21/2008 4:57 PM  
Alton, I think you mentioned the name in your 1/15 post and I don't see anything wrong with posting it. That is the brand I installed.
mary tUser is Offline
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01/21/2008 7:27 PM  
thanks every one the smell is now gone ,they took the rod out and we added water softener , its such a improvement not having that bad smell
BarnTalkerUser is Offline
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01/22/2008 2:06 PM  
New member.  New question on loops.  In our market here in SW Ohio, geothermal is coming to the forefront of discussion.  We have installed a few systems in new homes (we specialize in homesteads, small farms) but are encountering debate as to the potential problems with pond loops.  Namely, customers and subcontractors concerned with the potential for fish kills, deoxygenation, and thermocline inversion.  Most of what we see says that pond loops are the most efficient and since most of our projects include construction or rehabilitation of a farm pond, this system makes the most sense.  We shoot for a minimum 2000 s.f. per ton, min. depth 10'.  I can't find anything to confirm or deny these fears.  Please help a newbie.
TerryJUser is Offline
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01/24/2008 3:22 PM  

Just change out your magnesium anode rod and put in an aluminum rod as it does not react with sulphur.

leleUser is Offline
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09/03/2008 3:54 PM  
I have the same problem and was thinking of changing the water heater altogether for an on-demand heater instead. Anyone out there who has installed one?and does an on-demand water heater uses any part that would also make my hot water smell like rotten eggs?
engineerUser is Offline
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09/05/2008 8:41 AM  
I know of no prohibition against brand names here. The only non-metallic storage tank water heater I'm aware of is made by Marathon, and I'm sure that's what Alton was hinting at. I can vouch for their quality and efficiency. Beware they are not cheap.

I suggest Mary temporarily (for a week or so) remove the anode rode from the water heater in order to determine if it is the source of the problem. Removing it is fairly easy - one needn't even completely drain the heater. Biggest difficulty may be torque of fastener - I had to use an air impact wrench on one, even though it was a brand new water heater.

Running without anode will almost certainly both void warranty and reduce life of conventional heater. There may be an anode available made of an alternate metal to address this problem.

If the anode is the problem and no alternate material is available Mary could run without until the tank leaks and then replace with a Marathon. Replacement Marathon heater may be larger than present heater, so be sure there is room.

Betcha a tankless (on-demand) heater has the same problem. Whole house tankless electric water heaters need massive amounts of power - up to 120 Amps.

Without data, you only have an opinion.
joe.amiUser is Offline
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09/11/2008 12:34 AM  
Have installer ditch the anode rod. We do it routinely here in well water apps. Your old water heater likely had it removed on installation or it would have stunk too.
J
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Forums > Green Building Technologies > Geothermal Heat Pumps > really bad sulphur smell hot water geo heated



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