Things You Will Need
This problem happens most often for those who draw water from a well. It can also happen if you don’t use your water heater very often.
Using Heat
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Raise the temperature of your water heater by adjusting the thermostat. Raise it so that the water is above 140 degrees F.
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Let the water heater sit for several hours. During this time, keep children away from faucets as the hot water coming from them can cause serious burns. During this time the hot water will kill the bacteria.
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Readjust the heater to the normal temperature.
Using Hydrogen Peroxide
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Turn on a hot-water faucet in your home to drain a few inches of hot water from your hot-water heater.
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Remove the lid on the hot-water heater. This may require opening latches or unscrewing screws that hold the lid in place.
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Pour 3 pints hydrogen peroxide into the hot water heater. The peroxide will kill the bacteria but will not damage your health.
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Replace the lid of the hot-water heater.
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Turn on all the faucets in your home for several minutes until the smell is gone.