Deep underground, tiny bacteria love to munch on rocks. Their food? Sulfur. Their waste? That eggy fart gas. They’re just living their best life, and you get to smell it.
Fun fact: Some wells smell like cucumber or cucumber-mint. That’s sulfur too, just a different concentration. Weird, right? The nose knows.
Fix #1: The Thermal Shock (For the Water Heater Only)
If your hot water is the stink bomb, your water heater has a sulfur-loving bacteria party inside. Time to crash it. Turn your water heater up to 160°F for a few hours. That kills the bacteria.
Wait—be careful. That’s scalding hot. Don’t shower during this. After the burn, flush the tank. The smell should vanish like a bad joke. This works because heat denatures the bacteria’s proteins. Science is cool.
Fix #2: The Chlorine Shotgun (For the Whole Well)
When both hot and cold water stink, you need to shock your well. It’s exactly what it sounds like. You pour chlorine bleach down the well casing. It’s a power wash for your aquifer.
Clean Well Water Report: How Can I Fix My Smelly Well Water Problem?
Here’s the fun part: you have to recirculate the water. Hook up a garden hose to a spigot near the well. Run the chlorinated water through the hose and back into the well. Let it sit for 24 hours.
Then flush everything. Your lawn will get a weird high-five from the bleach. The smell? Gone. For now.
