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Rotten Egg Smell in Hot Water

Plumbing and water treatment companies are often faced with complaints about bad odors emanating from the water heaters.

Plumbing and water treatment experts often deal with complaints about water heaters giving off a rotten egg smell. This widespread issue across North America can cause discomfort and embarrassment, especially when guests are around.

Many plumbers, when confronted with the challenge of the rotten egg smell in hot water, might initially opt for quick fixes that, unfortunately, do not offer a lasting solution, leading to customer frustration and repeated service calls. While water treatment specialists propose long-term solutions that indeed work, they can come with a hefty price tag, often exceeding $2000.

Causes of the Rotten Egg Smell in Hot Water and How to Fix it

Understanding what causes the unpleasant rotten egg smell in your hot water is crucial for finding the right solution. Two common culprits stand out: sulfate-reducing bacteria (SRB) and the reaction involving the magnesium anode rod in your water heater. Let’s dive deeper into these causes and explore how to effectively address them, ensuring your water remains fresh and odor-free.

Sulfur Reducing Bacteria

Although there are several reasons why you have rotten egg smell in your hot water, the most common cause is the sulfate reducing bacteria (SRB) in the water heater. They feed on sulfur and produce hydrogen sulfide gas as waste. When the gas dissolves in the water, it gives it that characteristic odor of spoiled eggs or sulfuric odor. Even if the smell is horrible, those bacteria are not dangerous to your health.

Magnesium anode rod

Another common cause is the chemical reaction between your water which has high concentrations of magnesium content and the magnesium anode rod in the water heater tank. In some cases, the chemical reaction can be stopped by removing the anode rod. However, we don’t recommend that since the water heater won’t have any protection against corrosion. The water heater will corrode faster and cost you a lot of money when it starts leaking and could bring other issues such as air in your hot water lines.

Representation of Corro-Protec powered titanium anode rod
Representation of Corro-Protec powered titanium anode rod
Representation of Corro-Protec powered titanium anode rod
Representation of Corro-Protec powered titanium anode rod
Representation of Corro-Protec powered titanium anode rod

How to stop the rotten egg smell?

No matter the cause of the rotten egg smell in your hot water, the Corro-Protec Powered Anode Rod swiftly addresses this issue within a few hours. Once activated, the system’s energy projection ensures the elimination of these odors for years, all without the need for chemicals or ongoing maintenance.

This stands in contrast to other solutions like chlorine shock treatments or aluminum anode rods, making Corro-Protec the only long-term, affordable solution for keeping your water heater protected and your home odor-free.


Water Softeners’ Role in Hot Water Smell

Water softeners, while making water softer and more pleasant, can unintentionally boost the rotten egg smell in hot water by facilitating conditions that favor sulfate-reducing bacteria growth. This happens as these systems swap hard minerals like calcium and magnesium for sodium, inadvertently promoting an environment where these bacteria thrive, especially in the warmth of a water heater, thus increasing hydrogen sulfide gas production. The Corro-Protec Powered Anode Rod addresses this by preventing bacterial growth, ensuring your water stays fresh and odor-free without risking your water heater’s protection against corrosion.

Other water smells and solutions

Sulfur Smell

Sulfur smell and rotten egg smell in hot water are the same problems. People can use many adjectives to describe that smell but remember, if the water smells like rotten eggs, the Corro-Protec anode is your best solution.

Cold Water Smell

If you are experiencing a smell in your house that’s coming from your cold water, chances are the problem is coming from your well. In that case, you’ll need a water treatment specialist to come to do some water tests.

However, if the smell is both hot and cold water and you want to reduce it in your hold water, the Corro-Protec anode will reduce the hot water reactions that make it worse. Both cold & hot water will smell the same.

Natural Gas Leak

If your smell is coming from an appliance instead of your water supply, turn off your gas supply, go outside, and contact authorities and your gas company. Smell comes from your gas water heater, gas stove or anything that uses gas inside your house you may have a natural gas leak.

Corro-Protec anodes will remove your hot water rotten egg smell in house or RV suburban in less than 24 hours.

Your satisfaction is guaranteed this is why we offer a 90-day money-back guarantee and a 20-year warranty. Unlike peroxide treatment or aluminum anode, our powered anode rod made of titanium will last for many years and you don’t need to do any maintenance.

4.89/5 Based on 356 reviews

«Yes! The dreaded sulphur smell is gone. I did try an aluminum anode but was still getting the smell. I ran my old water heater without an anode for over two years until i got a blast of crap blocking my tub faucet valves and elected to buy a new tank and along with a Corro- Protec Anode. So far so good and enjoying the green lighted comfort feeling furnace room now»

Yvan L.

«This is a great product at a good price. Replaced a standard anode rod that was in the house when I bought it and was only 3 years old. It was completely gone due to the water quality. Installed this product and instantly the rotten egg smell was gone and I never need to worry about when to replace the rod. I had to tear up the top cover a bit to get it in but well worth the investment.»

Mitchell H.


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