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I have whirpool hot water heater mmodleezf 40RDO45 V six months ago I had to buy and new anode and now the water is stinky again like rotten eggs, am I going to have to buy a new one every six months? ] I had my other water 19 years and never had to get one of these and have done nothing to the water to warent this smell coming in the water. What gives? Mrs Frances Brown

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The smell is from bacteria.
1) The tank needs a new anode rod, but it also needs a periodic dose of hydrogen peroxide.
Recommend you reconfigure incoming water pipes where you can easily add 2 bottles of hydrogen peroxide and then flush water heater each 6 months. The peroxide kills the bacteria. Peroxide is not harmful to you since it is also used orally. You don't drink a bottle of peroxide, but it will not cause harm in trace amounts left in water heater.
2) There is something else to consider. If yours is a 12-year tank or lifetime tank, then you probably have 2 anode rods. Replacing one anode rod will not solve problem.
3) Another solution is a power anode rod. If your tank has two anode rods, then replace one with powered anode, and then remove the second anode rod.
According to the seller, he's had only one person where the water heater smell came back.

Here are links to information and to the powered anode rod:

Manufacturers are starting to add powered anode rods to their top models to assure longer tank life and better customer satisfaction.

Add a comment if you need more help.

Posted on Nov 08, 2010


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What could be the problem causing the rotten egg smell in the water? We have changed the anode rod.shocked the sulfur. We have kinetico softener. Use iron out salt. Water heater 2 yrs old.

Some water softeners you can increase the back wash time on the unit to clear out a smell or bad taste , rotten egg smell can be sulfur. You may need a well flush but seek a well company on that for there advice as its not cheap .

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Clean the tank with hydrogen peroxide as outlined in following link.
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Water smells like rotten eggs.

When the water heater smells bad, it is time for a new anode rod.
And then you flush the water heater with 2 bottles of hydrogen peroxide.

With water heaters that experience the problem frequently, you change your incoming cold water pipes so hydrogen peroxide can be added easily.,,20047047,00.html


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