What causes a STRONG sulpher smell in town water - on 1 half of a

3 Replies

I was showing a duplex to a buyer client yesterday.  The property has town water.  

On one side (occupied) the water looks and smells normal.

On the other side (vacant for some time), the tap water has a very strong sulpher / rotten egg smell. 

I've never come across this before.  Any idea what the cause might be?


Not sure about the local area where you live but here in Southern Georgia it is simply due to the nature of the normal water table.  Even though the water goes through the city filtration system it has such a high content of sulpher that it smells terrible and tastes just as bad.  The vast majority of homes in this area utilize a water softener and filter system that removes the smell and makes the water drinkable.  Also reduces corrosion and buildup on the pipes.

Did the occupied side of the duplex have a softener installed?  Sometimes in the garage or under the sink depending on the style.


Run the hot water for several minutes to flush out the tank. The water sits in the tank and with the interaction between the elements in the water and the metal in the tank and rod it can give off that sulphur smell. Usually goes away after running the water for awhile

Agreed that it is often the water heater that causes it. Sometimes flushing it will fix it, otherwise it may need a new anode rod (pretty cheap to fix).

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