How to Use an Aerator to Get Rid of a Sulfur Smell in a Well

Turn on the cold water faucet and smell the water. If it smells like sulfur, the source is probably your well.

Turn on the hot water faucet and smell the water. If the cold water smells fine but the hot water smells like sulfur, the culprit is your hot water heater. Changing the anode in your water heater to an aluminum instead of magnesium rod usually resolves the problem.

Test your water for coliform bacteria and nitrate. Wells contaminated by sewage may develop a sulfur smell. Have your septic tank and drain field checked by a plumber experienced in septic system problems. Treat the well with chlorine to kill the bacteria.

Select an indoor or outdoor aeration system. If you live in an area where winters are mild, an outdoor system installed between the well and your house may suffice. If you live in a cold climate, installing an indoor system prevents the water from freezing in the pipes or tank.

Turn the well pump off. Install the aeration tank between the well and the main water line, according to the manufacturer's instructions.

Add a whole house water filter or water softener to eliminate other contaminants that may remain in your water system after you install the aeration tank.

Turn the well pump back on.