I'm new here and I am also a new home owner...I recently bought a house that's got a 30 year old water heater I believe. It's electric.
When moving in we noticed a terrible smell from the hot water only, did not come from the cold water. This is water from a well. About 2 months ago I researched a lot and changed the anode rod in the tank. Wasn't too bad, it actually went pretty smooth. The smell actually cleared up for awhile, about a month and now I've noticed that it's come back stronger than ever. I did turn up the water to about 140 degrees but it seems to have done next to nothing. I only adjusted the lower thermostat. Does anyone have any suggestions? I can try turning it up again on both the upper and lower. Or is it just time for a new water heater? I'll try and attach some pictures. Thanks for your time.