What Do You Do When Your Well Water Smells Like Rotten Eggs. To fix well water that smells bad, use one of these approaches: If you’re dealing with water that constantly smells like rotten eggs, you’ll need to get in touch with a licensed plumber who can test your water source and then implement treatments.
Unless you are very familiar with water heater operation and maintenance, have a plumber or water system professional to do the work. After you have been away from your home for a few hours, smell the water coming out of the hot and cold water faucets. Check for leaks and tighten the water supply and outlet couplings another quarter turn to stop any drips, if necessary.
Chlorinate well water to eliminate both sulfur and bacteria.
You should see how much sulfur has built up in the well because you may need to hire someone to scrub the well before using the chlorine. First, check your drains to see if they smell. What is the difference between sulfate and hydrogen sulfide? If you can detect the smell only when running hot water, the problem is in the water heater, and you should follow the advice above.