Rotten Egg Smell after replacing anode rods in water heaters

Discussion in 'Pumps and Tanks Well Forum & Blog' started by ArayT, Mar 27, 2011.

  1. ArayT

    ArayT New Member

    Messages:
    28
    Location:
    Middle Georgia
    I posted this in the Water Softener Forum earlier, may have been the wrong location. After reading many post can someone tell me what type of test I should have run to determine if I have a bacteria problem. A year or so ago I did bleach my well out and the problem seemed to have gone away. It came back and then I replaced the anoddes in the water heaters and then rebleached everything. After this it got better and now its abck again. The problem I'm having is primilary with my upstairs, which I never go or use (teenager does). I Forgot to include the PH of 7.6 and hardness of 161 ppm. These test were done before installing the softener.
    Thanks Again Ray


    Can someone tell me the source of my rotten egg smell. I replaced the aluminum rods in both water heaters & I Still have that smell. I ocassionally get the smell downstairs (which is served by a different water heater) but upstairs its still real bad. I replaced the anode rods and the problem pretty much went away, but now its back. Had the water tested in 09 these are the results. Calcium 62.2 ppm, iron .25 ppm, magnesium 1.4 ppm, manganese .05 ppm, potassium .8 ppm, silica 34.76 ppm, sodium 2.9 ppm, all else was negliable. I installed a water softner just after this test and then replaced the anodes. Could gasses be traveling to the high point in the system which is upstairs? anyhelp would be appreciated.
    Thanks, Ray
  2. ballvalve

    ballvalve General Engineering Contractor

    Messages:
    3,261
    Location:
    northfork, california
  3. ArayT

    ArayT New Member

    Messages:
    28
    Location:
    Middle Georgia
    Thanks for the link! Looks like its time to add hydrogen perozide to my water heater.
    Ray
  4. Gary Slusser

    Gary Slusser That's all folks!

    That will kill the bacteria that are causing the odor. Or you can increase the heater temp to 140f for a few hrs and that will kill it also.
  5. ArayT

    ArayT New Member

    Messages:
    28
    Location:
    Middle Georgia
    Thanks Gary, That will be easier. Do you think this will solve my problems? I also read that my water softener could be causing this due to the reaction between softened water and the anodes. If this is the case is there a fix.
    Thanks, Ray
  6. DonL

    DonL Jack of all trades

    Messages:
    3,815
    Location:
    Houston, TX
    Hello ArayT and the group,

    A powered anode may be the way to go to cure the problem completely. I just decreased my softness level on my softener and
    it helped a lot. Gary is the pro for softeners. I am just the Jack of all Trades, and the Master of None. LOL

    Have a great day.

    DonL
  7. Gary Slusser

    Gary Slusser That's all folks!

    To have a H2S odor in the hot water you need three things present in the cold water entering the heater; SRB (sulfur reducing bacteria and in some cases iron reducing), some sulfates and a type of anode rod allowing the bacteria to get a hydrogen ion off it. Remove one of the three things and no more odor.

    The bacteria come in from the water source, usually a well, so it is an ongoing thing as long as you have the bacteria in the ground that cna get into the water. The bacteria is harmless.

    Naturally soft or softened water can not cause the problem.
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