Eliminating a rotten egg smell in your domestic water supply requires neutralizing hydrogen sulfide gas and bacteria. For water heaters, the most effective solution is to flush the tank thoroughly and replace the standard magnesium anode rod with a zinc-aluminum anode rod, which stops the chemical reaction producing sulfur gas. If the sulfur smell affects both hot and cold water taps, you may need to shock chlorinate your well system or install an aeration and carbon filtration system. Verification: Run your water taps after treatment to confirm the sulfur odor has been successfully eliminated.
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