You would know it if you had this problem! In some parts of the country, drinking water can contain the chemical hydrogen sulfide, which smells just like rotten eggs. This can occur when water comes into contact with organic matter or with some minerals, such as pyrite. The situation mostly occurs as ground water filters through organic material or rocks.

A foul odor is most likely due to biologic growth in the chemistry tanks. When the water and chemistry is emptied, clean the tanks well with a 1% solution of household bleach and water. Rinse thoroughly then refill the tanks.

The rotten egg smell is caused by hydrogen sulfide (H 2S) gas. Although the smell is unpleasant it is not harmful. Water heater tanks can provide an ideal environment for the production of hydrogen sulfide gas because it is a result of the corrosion of metals, such as the steel in a water heater. Although most water heaters are glass lined to prevent corrosion, it is impossible to prevent cracks from occurring.

The smell of rotten eggs is common when the battery is filled for the first time. When you fill the battery with acid, the initial reaction between the plates and the acid produces sulfur dioxide. It smells like rotten eggs, but it is harmless and will dissipate within a short time.

Typically the cause is water staying in the water heater too long. This causes the water to turn stagnant. Single handle type water faucets are typically being used in these situations and are not being fully turned to the cold position. This can occur when a water heater is too large for the amount of hot water typically used. It can also occur when the dip tube (cold water inlet) in the water heater deteriorates. Flushing out the water heater will provide an immediate temporary solution.

A frequent cause of musty, earthy odors, especially toward the end of the summer, is naturally occurring organic compounds derived from the decay of plant material in lakes and reservoirs. The odors can be objectionable, but generally are not harmful to health. However, odors can be caused by other constituents as well, so you may want to call your local Health Department and mention the odor to them.

Rotten egg odor is cause by the presence of hydrogen sulfide (sulfur) in the water. The hydrogen sulfide can be treated with a chlorinator system or a Manganese Greensand Filter.

It sounds as if you have a problem with Hydrogen Sulfide in your water. Water absorbs this gas as it passes through the ground. When you turn on your faucet, you actually vent the gas from your tap water. Hydrogen sulfide can be treated with oxidation and carbon filtration. The water then passes through a filter that removes the sulfur. The result is water free of the "rotten egg" smell you describe.

The California Department of Health requires the District to maintain a certain level of chlorine in the water to ensure that it remains bacteria free. This amount of chlorine is not harmful to people.

The most common cause for this smell could be stagnant water from the hot water heater. In which case, you would need to connect a hose to the water heater and allow it to drain. Another cause might be the plumbing trap under the sink could be too shallow or need to be cleaned.

You may have hydrogen sulfide in the water and your system may not be designed to address this issue. You may have a bacteria growth in the system or filter cartridge. If you have a filter cartridge, change it and clean the sump with bleach, rinse, add a quarter teaspoon of bleach and put the new filter in.

During the ferment, many beer yeast's, particularly lager strains, give off sulfur compounds. This is not a problem and your beer is not spoiled. As the ferment proceeds, the amount of sulfur smell will decrease, and sulfur smell will not be present in the finished beer.

A Many times on first start-up in the morning, the exhaust may smell like "rotten eggs". This is due to rich fuel condition with a cold engine. However, as the engine warms up, this smell should go away. If it does not, converter damage could possibly follow with extended driving.

The yolk color of the egg is determined solely on the feed the bird has ingested. A dark yellow or orange yolk is a result of an increased amount of corn the hen has consumed. A difference in yolk color does not mean a difference in quality of egg. The consumer choice in Alberta, for the most part, seems to be a light yellow yolk.

We have to maintain a trace of chlorine throughout our system, so some places have higher amounts than others.

The most common natural reasons for Florida’s water to smell unpleasant is because of the surrounding environment. With a high organic content, the water may smell "humic" and the presence of sulfur compounds makes the water smell of rotten eggs. Filtration often resolves the problem. Under certain circumstances, the human nose may also identify the presence of contaminants from spills, such as gasoline, or extreme bacteriological activity.

Water may have an undesirable taste or smell if it has been stagnant in household plumbing too long. A 3 X 7 flush should alleviate the taste and odor issues. Should the undesirable properties persist, decide if a particular faucet is at fault. Sometimes point of use equipment, water softeners, water heaters, or in-line filters, can be the cause of strange tastes or smells.