Nelsen Water Solutions AIO system (Air injection oxidation) w/Katalox for removal of Iron, Sulfur, Arsenic, Heavy Metals and more - 2 Cu Ft

The Nelsen Water Solutions Signature Series AIO is an air injection oxidation filter with Katalox-Light media. It removes iron, hydrogen sulfide (rotten egg smell), manganese, arsenic and heavy metals without chlorine or potassium permanganate.

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Specifications

Fits / Replaces

• Well water with iron, sulfur smell, manganese or arsenic
• Whole house, single tank system

Install & Use Notes

Test your water first. Plumbing adapters must be ordered separately. Have a water treatment professional size and set up the system for your water chemistry and flow.

Frequently Asked Questions

Q: How does the Nelsen Signature Series AIO system work without chemicals?
A: The system utilizes a patented air-injection process. It maintains a compressed "air pocket" at the top of the tank while in service. As raw water passes through this pocket, dissolved iron, manganese, and sulfur are instantly oxidized into solid particles. The Katalox-Light® media bed then mechanically filters out these trapped solids, completely eliminating rust staining and rotten egg odors without the need for chlorine or potassium permanganate.

Q: Can this system remove heavy metals like lead and arsenic?
A: Yes, the system is highly effective at reducing heavy metals. As the massive load of iron oxidizes and solidifies into physical particles, it undergoes a process called co-precipitation. The forming iron clusters naturally bind to heavy metals—such as Arsenic, Lead, Copper, and Zinc—and drag them out of solution, allowing the 3-micron Katalox-Light bed to safely trap and backwash them away. The active manganese dioxide coating also provides structural adsorption properties to reduce radioactive heavy elements like Radium and Uranium.

Q: Does the system cause loud noises or plumbing vibrations during regeneration?
A: No. Unlike standard systems that forcefully and violently purge compressed air pockets during regeneration—potentially causing loud hammering noises and pipe damage—the Nelsen Signature Series features exclusive Control Flow Technology. This patented process slowly and quietly releases the air pocket before replenishing the tank with a fresh supply. It will also intelligently delay the regeneration process if someone is actively using water in the home.

Q: How often does the system backwash, and does it require maintenance?
A: The fully automatic digital control valve is typically programmed to execute a daily backwash cycle at night while the home is asleep. This 5-to-10 minute cycle reverses water flow to lift the media bed, flushing accumulated sediment and oxidized metals out to a drain line. Because it is self-cleaning and chemical-free, the system requires virtually no routine maintenance or chemical refills.

Q: How long does the internal Katalox-Light media bed last?
A: Under typical operating conditions, the high-performance media bed lasts between 5 to 10 years before requiring replacement. Lifespan depends heavily on raw water turbidity and the volume of daily water consumption. When the media eventually requires replacement, the homeowner can simply swap out the media inside the existing fiberglass mineral tank rather than purchasing a new system.