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Home >Whole House Water Filter > Well Water Treatment  > Backwash Water Filters 


Iron Removal Backwash Filter Non Chemical

Iron and Sulphur removel backwash filter


Until recently, the most common solution for problem iron and sulfur water involved the use of harsh chemicals and complicated equipment requiring regular care and service by the homeowner or water treatment professional.

The chemical free Iron sulfur treatment, now offers the natural solution for removing iron and sulfur. A proven, patented technology that uses natures own oxidation process to eliminate iron and sulfur without chemicals, without air compressors, without aerators and without external venturis. Using natures own oxidation process, leaving you with fresh, clean, odor free water throughout your home.

Eliminate rust staining, as well as sulphur “rotten egg” odors with the Nelsen AIO™ Air Injection Oxidizing Filter System.

Iron and Sulphur are two of the most common elements found in nature, while both are extremely important for every day life, both are a nuisance in water and can cost you money and cause frustration.
Iron staining is a common problem in homes today. Iron staining on fixtures, as well as dingy clothes and sometimes even hair will turn a reddish orange color. Iron bacteria may be present in water with iron, creating a slimy build up in standing water (such as your toilet tank) and can smell like rotting vegetation. Sulfur is easily detected by the presence of a “rotten egg” odor, and is sometimes associated with yellow staining.

All of your water using appliances will lead longer lives. Dishwashers, automatic washers and, of course, your water heater will benefit from having reduced iron and sulfur, adding years to the life of major appliances and postponing expensive repair and replacement.

How the chemical free iron treatment  works:

The Nelsen AIO Filter System, as a single tank system, is an efficient and cost effective system for the removal of iron and sulphur. The Nelsen AIO maintains an "air pocket" in the top of the tank while the system is in service. As the water passes thru the air pocket, iron and sulphur are oxidized. Additionally, dissolved oxygen is added to the water. The Nelsen AIO filter media bed then removes the iron and sulphur from the water.

The chemical free iron sulfur treatment stores a bubble of air, compressed by your well pressure, within the media tank. As your water passes thru the air, the iron or sulfur is converted to a particle which is then trapped by the AIO filter media in the tank while the air bubble is gradually consumed by the passing water.  For regeneration, the unit first backwashes itself, removing any iron or sulfur particles it has trapped. The system then replenishes the air bubble by drawing in atmosphere, temporarily emptying the tank of all water and transferring oxygen molecules into and on the surface of the media bed where all oxidation occurs. The system then returns to the service position, again filtering your water.

The Nelsen AIO can remove up to 8 ppm Hydrogen Sulfide and up to 7 ppm Iron. A daily backwash will remove accumulated iron and replenish the filter media bed. The regeneration process also adds a fresh air pocket to the system.

The Nelsen AIO system comes equipped with a Fleck 2510SXT air injection control head that automatically backwashes the system daily to clean the media and flush everything down the drain. By utilizing a patented piston in the control valve, the Nelsen AIO™ is able to put the whole oxidation process inside one tank, keeping maintenance costs and down time to a minimum.

The systems include 3/4" by-pass valve, Structural mineral tank and all necessary media and support bed for individual application.

Learn More

Iron and Sulphur removal non chemical water filter

System Includes the following unless specified:
  • Fleck® 2510SXT  with Rust Resistant valve body for strength and durability.
  • Rust Resistant Structural Mineral Tank with base. Tank size according with Model specifications
  • Nelsen AIO Media, amount according with model specifications.
  • Gravel under-bedding to protect and support distributor. 
  • 1" distributors and 3/4 nickel bypass. 
  • Super Warranty - 5 years control valve and 10 years Mineral Tank.

Operation Conditions

  • No bacteria or algae Present


25AIO-1.0 :  Fleck 2510 Auto Backwash 1.0 well water filter
  • Fleck 2510 Control Valve - 1" Valve
  •  Nelsen AOI Filter Media
  • 10 X 54 Mineral Tank
  • Flow Rate - 7  GPM 
  • Backwash  rate 7 GPM @ 60 F
  • Recommended Backwash time - 10 minutes minimum

Our Price $ 975.00           



25AIO-1.5:  Fleck 2510 Auto Backwash 1.5 well water filter

  • Fleck 2510 Control Valve - 1" Valve
  • Nelsen AOI Filter Media
  • 12 X 52 Mineral Tank
  • Flow Rate - 9 - 15 GPM Recomended 9 GPM
  • Backwash  rate 9 GPM @ 60 F
  • Recommended Backwash time - 10 minutes minimum


Our Price  $ 1070.00 


25AIO-.2.0 : Fleck 2510  Auto Backwash 2.0  well water filter
  • Fleck 2510 Control Valve- 1" Valve
  • Nelsen AOI Filter Media
  • 13 X 54 Mineral Tank
  • Weather Resistant, Durable Tank Jacket
  • Flow Rate - 11-19  GPM Recommended 11 GPM
  • Backwash  rate 10 GPM @ 60 F
  • Recommended Backwash time - 10 minutes minimum


Our Price $ 1286.00






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