Before you run out and buy a hundred-dollar filter, do a quick test. Fill a glass with water from your tap, then walk away for two minutes. If the smell fades or disappears, the issue is likely local—probably in your water heater or a specific pipe.
If the smell stays put, the problem is deeper, likely in your well water or city supply. (Pro tip: ask your neighbors if they smell it too. If they do, it’s a community problem; if not, it’s your private stink party.)
Option 1: The “Hot Water Only” Hack
If the smell only comes out with hot water, congratulations—you’ve got a lazy water heater. That rotten egg smell happens when the magnesium anode rod inside reacts with sulfur bacteria. The fix? Replace that rod with a zinc-aluminum one. It costs about $30 and takes 30 minutes.
While you’re at it, drain a few gallons from your heater to flush out the bacteria. I know, it’s not glamorous, but neither is a shower that smells like a swamp.
Fix Rotten Egg / Sulfur Smell in Water (Easy $40 DIY Fix) Mobile Home
Option 2: Shock Your Well (Yes, Really)
For well owners, the classic fix is a chlorine shock treatment. You pour a bleach solution down your well, let it circulate, then flush it out. It’s like a spa day for your water supply—except the spa smells like a pool.
Warning: this will kill the bacteria and any nearby plants if you’re not careful. So don’t let the runoff hit your prize-winning petunias. (I learned that one the hard way, folks.)
