Nelsen Filtration Systems

Nelsen AIO Air Injection Oxidizing Filter System

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

Fleck 2510AIO SXT Control Valve

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 these problems can be eliminated with the Nelsen AIO™ Air Injection System.

The Nelsen AIO™ air Injection Oxidizing 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 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

Fleck 5600AIO SXT Control Valve

filter media bed. The regeneration process also adds a fresh air pocket to the system.

The Nelsen AIO™ system comes equipped with either a Fleck 2510SXT or 5600SXT 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.


Nelsen FreshPoint™ Ultrafiltration System

The PENTEk® FreshPoint™ Ultrafiltration System provides complete point-of-entry (POE) filtration proven to reduce turbidity, particulates and cysts

Nelsen FreshPoint™ Ultrafiltration System

for safer, cleaner water at every tap. The system employs hollow-fiber Ultrafiltration membrane technology to filter impurities as small as 0.025 microns.

To maximize membrane capacity and service life, a metered flushing cycle is controlled using an advanced controller and high-performance turbine meter.

The self-cleaning forward and backflush cycles are initiated when the programmed capacity of the membrane is reached. During the backwash, flow is reversed and particles are ejected from the pores of the membrane and flushed to drain. In the forward- flush cycle, service water passes through the capillaries at a high speed, scouring particles from the membrane surface and rinsing them from the system. Since power is only required to flush the system, outages and interruptions will not jeopardize the integrity of membrane or its ability to provide safer, cleaner water.

The advanced electronic controller provides a programmable day override which allows the unit to flush every day with fresh water when the system is not in use. Critical system diagnostics, including totalized flow, instantaneous flow rate, and previous day’s water usage, are available to optimize flushing cycles and monitor performance.

The high-performance industrial fiberglass housing is pressure rated to 300 psi. Inside the housing, the

membrane is sealed with double radial o-rings, minimizing the potential for leak paths. Quick-connect end caps allow the membrane to be easily removed for cleaning or replacement. The system can be applied to solve “known” water problems including high turbidity, suspended solids, and certain microbiological contaminants. It can also serve as a flushable pre-filter to extend the life of media filters downstream.

  • Designed for cyst reduction, turbidity, and fine sediment filtration applications
  • > 98% reduction of 0.025 micron (25 nanometer) particles*
  • > 99.99% (> 4 log) reduction of 0.065 micron (65 nanometer) particles*
  • Forward-flush and back-flush cleaning cycles provide extended filter life in a wide range of applications
  • Proprietary hollow-fiber ultrafiltration membrane
  • Professional-grade housing, controller and flush valve
  • Metered self-cleaning cycle flushes only when needed
  • Day override feature flushes module daily with fresh water when system is not in use
  • Peak flow rates up to 10 gpm (2271 l/h)

*Performance based on MS-2 (25 nm) and PRD-1 (65 nm) virus particle tests. Data available upon request.

Nelsen Poly-UF™ System

The Nelsen Poly-UF™ system offers filtration down to 0.02 micron at service flow rates up to 12gpm. Utilizing ENPRESS’ patented and industry exclusive liner design, the internal UF module treats colloids, bacteria, cysts, viruses, turbidity, tannins, and other particles down to 0.02 micron size.


The patented polysulfonebased Outside/In Ultrafiltration Membrane is designed for turbidity, cyst reduction and fine sediment filtration applications, and is NSF 61 certified. The membrane operates with flow from the outside-to-inside.

Benefits include minimized risk of deep clogging, simple cleaning with water and/or air, and a compact design. The membrane is nonbiodegradable, and has superior mechanical and chemical resistance. The high surface area UF bundles require normal line pressure to operate, low waste discharge when in backwash/cleaning mode, and offer low pressure drop with high service flow rates.

The Nelsen Poly-UF™ can be utilized as a final polishing stage or on water reclamation systems for rainwater or Grey water, along with offering protection during power outages and intermittent power. The system is BioVir certified and tested for log reduction.

Residential/ Light Commercial System

The Nelsen Poly UF System features the Polymeric Ultrafiltration (Poly-UF) Vessel system and the “C-Series” backwash control valve for daily backwashing of the membranes. The vessel also comes standard with a bottom drain opening and ball valve for ease of drainage and cleaning purposes of the tank system.

The cut-away on the system shows the membrane bundle inside the Enpress Pressure Vessel.



The patented polysulfone-based Outside/In Ultrafiltration Membrane is designed for turbidity, cyst reduction and fine sediment filtration applications, and is NSF 61 certified. The membrane operates with flow from the outside-to-inside, with benefits of minimized risk of deep clogging, simple cleaning of the membrane surface with water and/or air, and a high area volume ratio that allows for a compact design. The membrane is non-biodegradable, and has superior mechanical and chemical resistance. The Poly UF Vessel System provides point-of-entry (POE) filtration, for safe and clean water at every faucet.


  • Patented Outside/In Polymeric Membrane Filtration Module that is NSF 61, EPA, ACS and CDHS certified.
  • BioVir certified and tested system for log reduction of Bacteria and Virus.
  • Four bundles of 0.02 micron filtration.
  • High performance flow rates, up to 12 gpm.
  • Standard 2.5” top inlet opening for connection with standard backwashable control valves to in/out heads, for metered service.
  • Standard bottom drain and opening for drainage and cleaning purposes of the system.
  • No special controller or programming needed.
  • Economical POE packaging that looks like standard water treatment equipment.
  • Low waste water discharge used when cleaning.
  • Designed for cyst reduction, turbidity, and fine sediment filtration applications.
  • Protection during power outages and intermitent power.


  • Grey Water and Rainwater use, catchment, and recycling.
  • Tannin removal.
  • RO Pre-filter.
  • Polishing post filter filtration.
  • Colloid removal.
  • Bacteria, cyst and virus removal.


Technical information

  • Continuous flow at 10 gpm filtration at 0.02 microns.
  • 4.4 log reduction of Bacteria.
  • 2.4 log reduction of Virus.
  • 2.0 log (est) reduction of Cyst.
  • 100,000 MWC)

Filtration level

  • 0.02 micron.
  • Operating Temperature: 35 to 100 degrees F.
  • Operation Pressure: 10 to 100 psi.
  • Continuous Flow Rate: 10 gpm.
  • The system provides a treated flow of up to 12 gpm at 25 C and 60 psi.
  • Membrane is NSF 61 Certified.
  • Raw Water Specification:
  • Pre-filtration: 5 microns or less.
  • Chlorine: 1.0 ppm maximum for continuous flow (up to 2000 ppm for cleaning only).
  • Iron: Less than 0.30 ppm.
  • Manganese: Less than 0.05 ppm.
  • Silt Density Index: Less than 6.0
  • pH: 3 to 11.
  • Pressure Decay Test (PDT) is required upon installation.

Technical information

  • Backflush: Once per day (5 minutes at 0.7 to 2 gpm).
  • Drain Flush: Once per week (2 minutes at 5 gpm).

* This product is not certified as a microbiological purifier and should not be applied as a stand-alone disinfection solution for microbiologically unsafe water.

Nelsen 9000/9100 Series Softeners and Filters  

Many water supplies contain hardness minerals (calcium and magnesium), iron, rust and sediment. These minerals

Fleck 9000 SE Electronic Control Valve Shown on Softener

form a scale and create problems in water heaters, washing machines, dishwashers, coffee makers, humidifiers and plumbing systems. Nelsen water conditioners and drinking water systems are designed to reduce these unwanted contaminants providing your family with a refreshing difference, saving you money now and in the years ahead.

Nelsen brand water conditioners and filtration products have been providing homeowners with the best water treatment solutions for more than 50 years. Working with the professional water treatment dealer, your new Nelsen water treatment system will fit your exact needs and provide you with years of quality, conditioned water.

Fleck Brand Twin-Tank Control Valves

Twin-tank systems provide your family with soft water 24 hours a day, seven days a week. That's because the second tank soft water acts as a backup, ready to immediately provide soft water once 100% of the first tank is used. While the second tank is in service, the first tank regenerates, giving you all the advantages of continuous soft water.

Noryl or Lead-Free Brass Construction

Manufactured from high-tech Noryl (R)* material, the 9100 valve has been engineered and tested to withstand the

Fleck 9000 Mechanical Control Valve

equivalent of 27 years of uninterrupted daily use. The time-tested 9000 control features Lead-Free Brass construction.

15% savings in both water and salt

Unlike preset systems, the twin-tank system regenerates with soft water only when necessary. Plus it uses 100% of the tank in service. The end result? Fifteen percent savings in both water and salt.**

Electronic or mechanical

Your choice of the highly reliable 3200 mechanical timer or advance SE electronic timer with easy programming and minimal parts.

Large homes and families

Large families will appreciate the Fleck high flow capacity 1 inch control valve. Large homes with 1" plumbing will

Nelsen Corporation also offers a complete line of drinking water equipment. Combining these systems with Nelsen brand water filters and softeners provides your family with pure, fresh water right at your kitchen tap. Ask your professional water treatment dealer for a recommendation.

benefit from the Fleck 9000 1" control valves high flow rates. This means you will have plenty of water to do laundry, take showers and run the dishwasher all at the same time.

Only pennies per day to operate

Choose the SE electronic timer, and you'll pay only $ 4.87 in electricity for the entire year. Choose the mechanical timer, and that cost is less than 25 cents per year.

Additional features of the Nelsen Brand Water

High quality, cation water softener exchange resin. Tough, high density, polyethylene salt storage tank. Additional features available to match any decor. Full five year control valve warranty, ten year tank warranty.

Noryl (R) is a registered trademark of the General Electric Co.
* Compared to a system with meter delayed regeneration and the reserve set at 30% of the system capacity, provided that half of the reserve capacity is unused.
* Based on one regeneration per day at $ 0.0745/kw.

Benefits of a Nelsen Water Treatment System

In the bathroom

Your soap and shampoo will lather better. Your hair and skin will feel noticeably cleaner, softer, and not as dry. Additionally, there will be no soap scum or mineral deposits to clean off sinks, showers, tubs and toilets.

In the kitchen

Dishes will clean up more easily, and be spot-free, without the gray film glass gets when etched by mineral laden wear. Plus hands will feel softer and look better.

In the laundry

Clothes will softer, cleaner, whiter, and brighter. Plus they will last longer. Using the soft water and pure soap products increases the life of clothing, towels and linens up to 33%. Without hard water service issues, washing machines will last longer too.



Plumbing and appliances

Over time, soft water saving can really add up. For instance, conditioned water not only delivers greater washing power, it reduces the amount of soap you need to use by up 70%.

In fact, the Bureau of Statistics found that between 17 and 20.8 cents of every dollar are spent on cleaning products. Soft water can reduce that bill by up to 65%. It can also eliminate extra rinse cycles and hot water. Plus using less detergent, household cleaners and chemicals is better for the environment.

George Hogg


780 871 9283

Postal Address:
PO Box 12699
Lloydminster, AB T9V 0Y4

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