Why Does the Sink Water Smell Like Rotten Eggs?

faucet repair and replacement

If your kitchen sink water smells like rotten eggs, you’re not alone. This problem is actually quite common, but what causes it and how can you fix it?  While it’s typically not harmful to drink, the smell can be unpleasant and make it difficult to use the sink.  In this blog post, we’ll discuss the possible causes of sink water that smells like eggs, as well as some tips for how to fix the problem. We hope that this information will help you get your kitchen smelling fresh again!

What Causes that Rotten Egg Smell?

There are a few different things that could cause your sink water to smell like rotten eggs. The most common culprit is a high concentration of sulfur in the water. This can be caused by proposals decomposing in the sewer lines, or by contaminated well water. In either case, the sulfur is converted into hydrogen sulfide gas, which can escape into your sink through small cracks or gaps in the plumbing. A common source of sulfur-containing materials is sewage. If sewage leaks into the sink drain, it can decompose and release hydrogen sulfide gas. Another common source of hydrogen sulfide gas is decaying organic matter, such as food scraps. If food scraps are allowed to build up in the sink drain, they can decompose and release hydrogen sulfide gas. Finally, some sink drains are connected to hot water heater vents. If the hot water heater vent is not functioning properly, it can allow hydrogen sulfide gas to escape into the sink drain.

Another possibility is that you have a build-up of magnesium or iron deposits in your sink pipes. This can happen if you have hard water and it reacts with the metal pipes. These elements are often found in well water and can lead to a distinct smell; as the water sits in the pipes, these minerals can build up and cause a foul odor.  When this happens, it can create an unpleasant smell that is often mistaken for sulfur. If you think you might have this problem, you can try using a sink descaler to remove the deposits.

What is Hydrogen Sulfide Gas?

Hydrogen sulfide gas is a colorless, flammable gas that is produced when organic matter decomposes in the absence of oxygen. It is often referred to as “sewer gas” or “swamp gas” because it is produced when sewage decomposes. Hydrogen sulfide has a very distinctive odor that has been described as smelling like rotten eggs. It is heavier than air and will sink into low-lying areas. When hydrogen sulfide is present in high concentrations, it can be very dangerous. Inhaling the gas can cause headaches, nausea, and dizziness.

Removing the Rotten Egg Smell

When sulfates enter sink water, they can react with other chemicals to produce the characteristic rotten egg smell. In addition to being unpleasant, the rotten egg smell can also indicate the presence of harmful bacteria in sink water. Therefore, it is important to take steps to remove sink water that smells like rotten eggs. This can be done by installing a water filter or adding chlorine to the sink water.

If you notice a rotten egg smell coming from your sink, there are a few other things you can do to get rid of it. First, clean your sink thoroughly with hot soapy water. This will remove any dirt or grease that may be contributing to the smell. Next, pour a solution of one part vinegar and one part water down the drain. Vinegar is a natural disinfectant and will help to neutralize the odor-causing sulfates. Finally, run some cold water down the drain to flush away the vinegar solution. With these simple steps, you can eliminate the rotten egg smell from your sink – and make your kitchen a healthier place.

Preventing Rotten Egg Smell in your Sink

Fortunately, there are a few simple things you can do to prevent hydrogen sulfide gas from building up in your sink.  The easiest way to prevent the rotten egg smell from building up in your sink is to clean it regularly with a disinfectant cleaner to kill any bacteria that might be growing there. This will remove any sulfur-containing materials that might be contributing to the problem. You can use a high quality sink stopper that seals tightly to prevent any extra food and debris from getting down the drain; dirt and debris can provide food for the bacteria that produces hydrogen sulfide gas.  

Next, run cold water for a few seconds before using hot water, as hot water can release more gas into the air.  Third, use a sink aerator to help ventilate the drain system. This will allow air to circulate and keep the environment inside the sink dry.

You may also want to have your plumbing inspected to make sure there aren’t any leaks that could be allowing hydrogen sulfide gas to seep into your home.  By taking these simple precautions, you can keep your sink smelling fresh and free of hydrogen sulfide gas.

White’s Plumbing LLC Will Fix Your Kitchen Sink

If your sink smells like rotten eggs, it’s important to take care of the problem as soon as possible. The professionals at White’s Plumbing LLC can help you identify and fix the source of the smell so that you can enjoy a fresh-smelling kitchen again. Contact us today for more information or to schedule an appointment. We look forward to helping you get rid of that stinky sink!

Contact White's Plumbing Today

Request A Service Call

We’ll get in touch with you as soon as we can!