Rotten egg smell is usually from H2S or sulfur reducing bacteria, or a chemical reaction with the WH anode. Iron Out has it's own smell, but I've never heard of Iron Out causing the rotten egg smell but if you're sure that's what it is. Repeatedly shocking the well does not cure either the symptom or the disease. The cause of the smell needs to be determined and treated.

Since you say you had the egg smell problem solved with your old softener and it returned with the new rental softener we have to look there.

Perhaps you did use way too much Iron Out so all you can do now is dump all the salt in the brine tank. Wash the brine tank out thoroughly with cold water. You NEVER want to fill the brine tank all the way up with salt.

There is an easier way to use Iron Out then as described on the package. When used properly Iron Out works better than the rust remover salt and it's EZ to do.

Tell me what brand, model, and size softener and what your water conditions and water usage are and then I can help you get back up and running and tell you how to use Iron Out correctly.

This post was edited by justalurker on Wed, Aug 28, 13 at 12:02