Why does the lake smell like rotten eggs?
Christopher Harper
Updated on March 14, 2026
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Also to know is, what does it mean when water smells like eggs?
If your water smells strongly of sulfur, or rotten eggs, it is likely attributed to the presence of “sulfur bacteria” or hydrogen sulfide. Reactions caused by the magnesium rod and aluminum in your water heater produce hydrogen sulfide gas, yielding a stronger sulfur scent when you use the hot water.
Likewise, why do lakes smell bad? Odor in Lakes. When lakes smell bad, we notice. Most people recognize “rotten egg” smell, which is hydrogen sulfide (H2S). It is formed when sulfate is metabolized in the absence of oxygen, usually in the bottom of a stratified lake.
Moreover, is rotten egg smelling water harmful?
In most cases drinking water that has a strong rotten egg odor, although particularly unpleasant, is perfectly safe to drink. However in some rare occasions the odor may be caused by sewage or other contaminates in a building's water supply, which could cause health problems.
How do I remove sulfur smell from well water?
Chlorine bleach can effectively remove medium to high levels (over 6 mg/l) of hydrogen sulfide. The chlorine in the bleach chemically reacts with (oxi- dizes) the hydrogen sulfide eliminating the "rotten egg" odor. Chlorine bleach also reacts with iron or manganese, and disinfects water supplies.
Related Question AnswersHow do you remove hydrogen sulfide from water?
Hydrogen sulfide may be reduced or removed by shock chlorination, water heater modification, activated carbon filtration, oxidizing filtration or oxidizing chemical injection. Often treatment for hydrogen sulfide is the same as for iron and manganese, allowing the removal of all three contaminants in one process.Can I put too much bleach in my well?
Also, if the smell is only in your hot water, you may just have bacteria in your water heater. Keep it over 140 and it'll kill the stuff in there too. A small amount of chlorine won't hurt a septic system, but a large amount (e.g. a gallon put in all at once) can kill the bacteria that you *do* want in that system.How often should you shock your well?
When Should you Chlorinate Your Water Well. Homeowners with private wells should have their well water tested every 3 to 5 years for some contaminants, including bacteria. If these tests turn up positive for bacteria, chlorinating the well may be a way to resolve the problem.Can a water softener cause rotten egg smell?
Any water softener tank, regardless of the manufacturer, can begin to smell bad if it becomes infested with sulfur bacteria. Sulfur bacteria is attracted to the sodium in water softener tanks. As the bacteria grows, hydrogen sulfide gas is released as a waste product, hence the rotten egg odor.Can you shower in sulfur water?
It is safe to shower in it . But it would be better to check your water also . It's probably anaerobic Bactria which gives off sulfur and is easily fixed by adding air to your water . It will give you a slight scent of sulfur on your skin and some people could be irritated by the sulfur .How do you get rid of Sulphur breath?
Try these simple steps to make your mouth feel fresh and clean.- Brush and floss more often.
- Rinse your mouth out.
- Scrape your tongue.
- Avoid foods that sour your breath.
- Kick the tobacco habit.
- Skip after-dinner mints and chew gum instead.
- Keep your gums healthy.
- Moisten your mouth.