That unmistakable stench of rotten eggs wafting through your tap water is more than just unpleasant—it’s a sign of hydrogen sulfide gas lurking in your plumbing. This sulfur smell taints your drinking water, ruins laundry with a sour odor, and can corrode your pipes and fixtures, driving up repair costs and threatening your home’s plumbing integrity. Beyond the nuisance, it erodes your comfort and peace of mind every time you turn on the faucet.

The system that fixes it

The C-Series Rotten-Egg Sulfur Smell System is engineered specifically to target and eradicate the hydrogen sulfide gas responsible for that foul odor in your water. At the heart of this solution is the robust C-Series air-injection control valve head valve, a genuine, serviceable brand valve designed to inject precise amounts of air into the system. This air initiates oxidation, transforming hydrogen sulfide into a harmless solid that can be flushed away. The valve’s reliable, maintainable design ensures years of consistent performance without unexpected downtime—an essential feature given the corrosive nature of sulfur-laden water. The system’s tank is built on an air-injection oxidizing platform, providing the perfect environment for the Katalox Light oxidizing media to work its magic. This media oxidizes the hydrogen sulfide gas, trapping it as a solid within the filter bed, which is periodically flushed to drain, leaving your water fresh and odor-free.

• Durable C-Series air-injection control valve precisely regulates oxygen injection for effective sulfur removal
• Air-injection oxidizing tank construction protects against corrosion and maximizes oxidation efficiency
• Katalox Light oxidizing media converts hydrogen sulfide gas into solid particles, eliminating rotten-egg smells
• Serviceable valve design means easy maintenance and extended system lifetime
• Automated backwash flushes out oxidized sulfur solids, ensuring clean media and consistent odor removal

Pick your size

Choose the system size tailored to your home's bathroom count to ensure effective removal of sulfur odors and optimal water quality.

What it does for your home

• Eliminates the rotten-egg sulfur smell at the source, restoring fresh-smelling water throughout your home
• Prevents sulfur-induced corrosion and damage to pipes, faucets, and water-using appliances
• Protects your home’s plumbing infrastructure, extending the lifespan of fixtures and reducing costly repairs
• Ensures clean, odor-free laundry by preventing sulfur from depositing on fabrics
• Improves water taste and comfort, making drinking, cooking, and bathing pleasant again
• Enhances overall home health by removing a gas that can cause irritation and discomfort

With the C-Series Rotten-Egg Sulfur Smell System, your home will no longer suffer the negative consequences of hydrogen sulfide contamination—only clean, safe water you can trust.

How the media works

The secret behind this system’s effectiveness lies in its use of Katalox Light oxidizing media. When hydrogen sulfide gas is present in your water, it is invisible but produces that telltale rotten-egg smell. As water passes through the oxidizing tank, the air-injection valve introduces oxygen that activates the Katalox Light media. This media chemically converts the dissolved hydrogen sulfide gas into solid sulfur particles. These solids are too large to remain suspended in the water and are trapped within the filter bed. During periodic backwash cycles, the tank flushes these solids safely down the drain, continuously renewing the media’s capacity to remove new hydrogen sulfide gas. This air-driven oxidation process is highly efficient and reliable, ensuring your water stays fresh and odor-free.

Why buy this system from us

• Equipped with genuine, serviceable C-Series air-injection control valves for dependable, maintainable operation
• Free water system sizing assistance from US-based experts to match your exact home requirements
• Complimentary shipping anywhere in the US—no hidden fees or extra charges
• Matched one-brand build means all components are designed to work seamlessly together for maximum performance
• Trusted, proven technology specifically engineered for stubborn rotten-egg sulfur smells

Common questions

Q? How quickly will the rotten-egg smell disappear after installation?

A The system begins oxidizing and trapping sulfur particles immediately upon use. Most homeowners notice a significant reduction in odor within days, with complete elimination as the media fully cycles through.

Q? Can this system handle very high concentrations of hydrogen sulfide gas?

A Yes, the C-Series offers multiple sizes to fit homes with different water demands, and its Katalox Light media is highly effective at oxidizing hydrogen sulfide across a wide range of concentrations. Proper sizing ensures the system can maintain odor-free water consistently.

Q? What maintenance is needed to keep the system working effectively?

A Routine maintenance includes periodic backwash cycles to flush out oxidized sulfur solids, which the system performs automatically. The genuine C-Series control valve is serviceable, allowing for easy repairs or parts replacement when necessary, without costly full-system swaps.

Shop the C-Series Rotten-Egg Sulfur Smell System →

Prefer another valve brand? The same fix comes in Fleck, Autotrol, C-Series, Pentek and Pentair.