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

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:
http://www.waterheatertimer.org/Replace-anode-rod.html
http://www.waterheaterrescue.com/pages/WHRpages/English/OrderPages/XCart/Power-Anode.html

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

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