FAQs

The following provides information about the High Efficiency (HE) LINX® family of water treatment products made by Pionetics Corporation – the smartest water systems ever. For more information contact us here. To obtain a printable PDF of these FAQs, click here.

To see videos on how all the High Efficiency LINX Systems save water, or to see how the systems work, go to the LINX YouTube Channel here.

  1. What is LINX® Technology?
  2. How does the LINX Technology work?
  3. What are the components of a LINX system?
  4. What models of LINX products are available?
  5. Which LINX system is right for me?
  6. Why is LINX the smartest water system ever?
  7. What is the Dial-A-Taste® Control feature and how does it work?
  8. What is the FSA?
  9. How does LINX Technology use less water than RO?
  10. How much money can a LINX system customer expect to save on their municipal water bill using the LINX system rather than RO?
  11. How often do the filters need to be changed?
  12. How much will a filter change cost?
  13. How much water can I draw at one time?
  14. How much electricity does the LINX system use?
  15. Can the LINX system be hooked up to an icemaker and will the ice be crystal clear?
  16. What contaminants are reduced using LINX?
  17. Are LINX Products Certified?
  18. How do I become a LINX dealer?

1. What is LINX® Technology?

LINX stands for eLectrically regenerated IoN eXchange. LINX products employ the first new technology in the point of use (POU) water treatment industry since residential reverse osmosis (RO) was introduced in the 1970s. The patented process employs the basics of ion exchange technology but uses electricity rather than salt or other chemicals. LINX systems use cation and anion media to remove a wide range of Total Dissolved Solids (TDS) including metals, nitrate, nitrite, fluoride, and others.

LINX Technology is the first SMART water system that (1) takes into account the quality of your feedwater AND then (2) provides Dial-A-Taste® controls which allow you to control the TDS of your product water. By taking into account the quality of the feedwater, the installer is able to program the feedwater TDS into the system to optimize performance and recovery. The Dial-A-Taste feature allows YOU to decide how your drinking water will taste.

LINX products are ideal for any application that requires TDS reduction in lower volume applications.

2. How does the LINX Technology work?

Water passes thru LINX TDS cartridges made from ion exchange resin. An electrical field causes the TDS in the water to be adsorbed in the cells producing high quality deionized water.


THE DEIONIZATION PROCESS


Periodically, based on feed water quality, the cells need to be regenerated. During regeneration the electrical field in the cells is automatically reversed releasing the contaminants. The cells are flushed with water and the concentrated TDS goes down the drain. The system is then ready to again produce high quality water.


THE REGENERATION PROCESS


Click here to see a video on how LINX systems work.


3. What are the components of a LINX system?

LINX systems include the following components:

  1. A sediment pre-filter to remove suspended solids in the feed water
  2. LINX TDS reduction cartridge(s) – 1 or 2 depending on LINX model
  3. A carbon post-filter to polish the water prior to drinking
  4. Optional UV or Ultra Filter for purifier benefits

4. What models of LINX products are available?

LINX technology is available in 3 products:

  1. The LINX 160 LINX Faucet and Tank
    • Ideal for residential and small office drinking water applications
    • 3 or 4 stage design
      1. Sediment pre-filter
      2. Single LINX cell
      3. Carbon post-filter
      4. Optional UV or UF
    • During deionization, the system produces 1 to 6 gallons (4 to 24 liters) of drinking water in 2 hours, depending on feedwater quality.
    • Regeneration takes 30 minutes
    • 20-35 gallons (80-140 liters) per day production capacity. Warranted for 25 gallons (100 liters) per day based on average daily production.
    • A tank is required
    • Universal power supply

  2. The LINX 140 Series
      water filters
    • For high volume users or for very high TDS feedwater
    • Available in either a tank (LINX 140T) or tankless (LINX 140) models
    • 3 or 4 stage design
      1. Sediment pre-filter
      2. 2 LINX cells
      3. Carbon post-filter
      4. Optional UV or UF
    • Dual cell design produces .5 gallons (2 liters) per minute
    • Prior to regeneration, the system produces 1.5 to 12 gallons (4 to 48 liters) of drinking water at up to 0.5 rpm (up to 2 liters) in up to 24 minutes, depending on feedwater quality
    • Regeneration takes 38 minutes
    • 100 gallons (400 liters) maximum daily production. Warranted for 25 gallons (100 liters) per day based on average daily production.
    • Available in 120 and 240 volt systems

  3. LINX Cooler Modules (LCM) and Coolers
    • LINX technology is also available in coolers
    • LINX 160 & LINX 140 LCMs are suitable to be used in a variety of full sized coolers
    • Also available with either the LINX 160 & LINX 140 LCM already integrated into the cooler

All LINX models can be private labeled.

5. Which LINX system is right for me?

6. Why is LINX the smartest water system ever?

LINX products employ programmable software that controls how it works and allows performance to be optimized based upon feedwater quality and product water preference. This is what allows you to dial the taste, keeps track of how much water is produced, and tells you when it is time to service the unit and replace cartridges etc. LINX systems have a built in leak detector that shuts down the system if it senses a leak. The system will also issue an audible alarm to alert the home or business owner. (In addition, you can plug in remote leak detectors that will also issue an alarm through the LINX 160 system.)

Built in Leak Detector on the LINX 160 and LINX 140 systems

External Leak Detector in the LINX 160 System

The LINX systems also have indicator lights next to the Dial-A-Taste control that inform the consumer of the system status. (See the Dial-A-Taste control in FAQ #7.) A label on the system tells the consumer what each light means. No other drinking water system has this ability to think and communicate.

A typical label on the LINX 140T model.

7. What is the Dial-A-Taste® Control feature and how does it work?

LINX products include the patented Dial-A-Taste® Control that allows the consumer to select any of 5 settings to get the taste they want. Other drinking water systems only have one setting and one water quality output.

If you like water with higher mineral content set the dial to the minimum power setting of 1 on the LINX 160 (move the dial towards the “A” light on the LINX 140). If you like RO quality water, set the dial for maximum power of 5 on the LINX 160 (move the dial towards the “D” light on the LINX 140). (See the Dial-A-Taste control settings below.) You might find setting the dial on one of the middle suits your taste the best. The dial changes the electrical current to the LINX cell, which changes the level of TDS reduction. TDS reduction is generally in the range of 70% at the minimum dial setting and 95% at the maximum setting. The dial setting has no effect on the water recovery rate.

LINX certification testing for contaminant claims showed a minimum of 85% reduction (e.g. nitrate/nitrate) levels at the minimum power dial setting. LINX systems actually perform better than the 85% minimum TDS reduction under nearly all feedwater conditions. See the Performance Data Sheet here.

Dial-A-Taste setting and indicator lights on a LINX 160 system.

Dial-A-Taste setting and indicator lights on a LINX 140 system.

8. What is the FSA?

The Field Service Assistant (FSA) is a hand held device that is used for a number of functions that helps optimize LINX system performance. It provides the technician with a complete system diagnosis and IF service is needed, walks the technician through the step-by-step service process.

The FSA also is used by the installer to program feedwater TDS to optimize performance and recovery. The following table illustrates water recovery at 50 psi and 50 degrees Fahrenheit:

Feedwater TDS

Water Efficiency/Recovery – LINX 160

Water Efficiency/Recovery – LINX 140Water Efficiency/Recovery – Typical RO
<10090%90%6%
100-20082%82%6%
200-30076%76%6%
300-40070%70%6%
400-50067%65%6%
500-60065%61%6%
600-70063%58%6%
700-80062%55%6%
800-90061%55%6%
900-100061%55%6%
>100061%55%6%

9. How does LINX Technology use less water than RO?

Two factors affect the water efficiency of POU drinking water systems:

  1. 1. Net driving pressure (the sum of feedwater pressure, plus any booster pump if used, less back pressure, less the pressure loss due to kinetics of the treatment device)
  2. 2. Feedwater temperature
  3. RO systems are greatly affected by these whereas LINX products are not.

    During certification testing, POU drinking water systems are rated for recovery and efficiency. Recovery indicates the percentage of water that the unit produces as a percentage of total water used – without the required storage tank in the case of RO. For most household RO systems the recovery rate is 25-33% when the system is tested in the laboratory; but these are conditions that NEVER exist in your home or office – no tank and ideal feedwater temperature and pressure. That means that when you add the tank even under ideal feedwater temperature and pressure the recovery rate drops as the back pressure from the tank increases, as the tank fills. In certification testing when the tank is added “recovery” is called “efficiency” and when RO systems are operated with the tank they recover 14% of the water under the best of conditions in simulated household usage. Because water is usually drawn one glass at a time and the RO is always topping off the tank against the highest back pressure, the actual water usage rate is much lower even than the “efficiency” rating. That is why RO salesmen and their literature talks about “recovery” not “efficiency” and they certainly don’t want to talk about “actual usage performance”.

    LINX products employ a batch process and only regenerate after the system produces the preset volume of water depending on the LINX model and feedwater TDS setting. During regeneration, the LINX 160 uses 0.6 gallons (2.6 liters) of water, while the LINX 140 uses 1.2 gallons (5 liters) of water.

    Feedwater temperature and pressure also affect RO recovery and when factored in, greatly influence the final efficiency numbers.

    Pionetics recently asked John VanNewenhizen (a 40 year water treatment industry professional with over 30 years at Culligan International in technical management and product development) to perform tests comparing 5 different point-of-use systems under simulated household use to determine the real rate of recovery for each. Feedwater temperature and pressure also affect RO recovery and when factored in, greatly influence the final efficiency numbers. The following tables from the report show actual efficiency rates for LINX and a typical RO with 400 ppm TDS feedwater. Go here to read the full study.

    You can also see the water savings in action on the LINX YouTube Channel here. The tables below provide information on LINX system efficiency depending upon temperature and water pressure.

    LINX Percent Efficiency Projections over a range of Temperatures and Pressures

    Pressure and Temperature % Recovery at 20 PSI/1.5 Bar % Recovery at 40 PSI/3 Bar % Recovery at 60 PSI/4.5 Bar % Recovery at 80 PSI/6 Bar
    77F / 25C72%72%71%71%
    70F / 21 C72%72%71%71%
    64F / 18C72%72%71%71%
    60F / 16C72%72%71%71%
    54F / 12C72%72%71%71%
    48F / 9F72%72%71%71%
    40F / 4C72%72%71%71%

    Typical RO Efficiency Projections over a range of Temperatures and Pressures

    Pressure and Temperature % Recovery at 20 PSI/1.5 Bar % Recovery at 40 PSI/3 Bar % Recovery at 60 PSI/4.5 Bar % Recovery at 80 PSI/6 Bar
    77F / 25C7%10%12%14%
    70F / 21C6%9%10%13%
    64F / 18C5%8%9%11%
    60F / 16C5%7%8%10%
    54F / 12C4%6%7%9%
    48F / 9C4%5%6%8%
    40F / 4C3%4%5%6%

    This data indicates that RO wastes water at a far greater rate than reported during certification. At the TDS level in the feedwater used in testing (~400 ppm TDS) LINX wastes only 0.5 gallons (2 liters) for every 1 gallon (4 liters) of drinking water and is indifferent to variances in feedwater pressure or temperature. This is the same recovery as reported in LINX certification testing. See the Performance Data Sheet here.

    10. How much money can a LINX system customer expect to save on their municipal water bill using the LINX system rather than RO?

    LINX users can expect to save money on their water and sewer bills. Per the results of the VanNewenhizen study, water savings could be as much as 1,000 gallons (4,000 liters) every month or MORE if the home used just 1 gallon of water per day. The actual price of water charged by the water provider is a factor, as well as, the volume of drinking water used each month. One LINX customer in Mesa, AZ reported a $10 USD reduction in his monthly water bill after switching to LINX 140. Consumers should consult a local dealer for regional cost savings specifics.

    11. How often do the filters and TDS Cartridges need to be changed?

    For single cell LINX 160 systems, the LINX TDS cartridge needs to be replaced after 650 gallons (2,500 liters) of product water have been produced. For the dual cell LINX 140 systems, both of the LINX TDS cartridges need to be replaced after 1,300 gallons (5,000 liters) of product water have been produced. This is the amount of drinking water used in a home over 2-4 years depending upon family size, etc. Over time “scale” may form in the TDS cartridge and TDS reduction may decline somewhat. If this occurs the TDS cartridges may have to be changed out more often. On softened water they will last longer. For water over 17 grains we recommend pre-softening.

    The pre and post filters are rated to produce 650 gallons (2,500 liters) of product water. We recommend that they be changed annually.

    The indicator lights on the front of the systems inform the customer when water production has reached these volumes.

    12. How much will a filter change cost?

    This is determined by the dealer but is typically about $100 USD for the service call and replacement of the sediment and carbon filters, and $200-250 USD for the service and replacement of the sediment and carbon filters plus the TDS reduction cartridge(s).

    13. How much water can I draw at one time?

    This is determined by the size of the storage tank for the LINX 160 and 140T systems. For the LINX 140 (tankless) system up to 3 gallons (12 liters) of water is available prior to regeneration.

    14. How much electricity does the LINX system use?

    LINX systems use very little electricity – only 0.2 kWh per gallon which is equivalent to 70 kWh per year for a typical family using 1 gallon (4 liters) of drinking water a day.

    15. Can the LINX system be hooked up to an icemaker and will the ice be crystal clear?

    Yes. Crystal clear ice is a function of the ice maker, in concert with good water. Residential icemakers freeze the ice from the outside in and sometimes air gets caught in the cube, thus the ice is not perfectly clear. Commercial icemakers freeze ice from the inside out, which pushes the air out – thus you always get crystal clear ice cubes as long as good water is used. The higher pressure and flow from a LINX system allows you to use it with any type of high-end residential ice maker.

    16. What other contaminants are reduced using LINX?

    Internal test data and reports from others who have evaluated LINX products indicate the following performance.

    This is for information only and not for making “claims” as defined by the certification agencies.

    ContaminantPercent Reduction – LINX test data performancePercent Removal – Typical ROComments
    Aluminum9598-99
    Ammonia9886-92
    Arsenic III85
    Arsenic V93
    Barium9996-98
    Bacteria99.92 log reduction from LINX technology plus 1 log additional from the optional UV
    Bicarbonate8790-95
    Borate7030-50
    Bromide>9587-93
    Cadmium9996-98
    Calcium9494-97
    Chloramine40
    Chloride9287-93
    Chlorine –hypochlorite8013-91RO removes with pre-carbon or it will damage the membrane
    Chromium III>9096-98
    Chromium VI Chromate9990
    Copper9996-98
    Cyanide9886-92
    Ferrocyanide>9898-99
    Fluoride9287-93
    Iron9095-98
    Iodine>95
    Lead9996-98At low pH (6.5)
    Magnesium9296-98
    Manganese>9595-98
    Mercury>9896-98at low pH (6.5)
    Monochloroacetic Acid80
    Nickel9898-99
    Nitrate9960-7597% in the LINX 140 and 140T
    Nitrite9992% in the LINX 140 and 140T
    PathogensNo data available
    Perchlorate96
    PesticidesSomewhat, but only weak acids, bases and ionic species
    Phosphate>9598-99
    Potassium9487-94
    PyrogensNo data available
    RadonNo – Radon is a noble gas
    Sediment5 micron sediment filter is very effective for sediment reduction
    Selenium99>95
    Silver>9893-96
    Sodium<9487-93
    Strontium9996-98
    Sulfate>9598-99
    Sulfite>9596-98
    Thiosulfate>9598-99
    Viruses2 log reduction from LINX technology plus 1 log from the UV
    Uranium Uranyl>95
    VOCsCarbon filter reduces VOCs
    Zinc>9898-99

    Italics indicate estimated performance from ion exchange selectivity information.

    Actual performance will depend on the power setting and flow rate. Reducing the flow rate will increase contaminant reduction due to increased contact time.

    17. Are LINX Products Certified?

    LINX products are certified by a number of “authorities”. The attached summarizes the major certifications.

    Summary of LINX 160 and LINX Cooler Module (LCM 120V and 240V) Drinking Water System Certificates (US, Canada, Europe universal voltage 100-240V)

    CertificateMarkIssued byDescription
    WQA Gold Seal, NSF/ANSI 53; nitrate/nitrite) LINX 160 systemWater Quality AssociationWater Quality AssociationConfirms structural and material safety, performance benefits
    WQA Gold Seal, NSF/ANSI 53; nitrate/nitrite) LCM-160 systemWater Quality AssociationWater Quality AssociationConfirms structural and material safety, performance benefits
    UL979:2005; Water Treatment Appliances LINX 160 ProductTUV Rheinland of North America, Inc.TUV RheinlandConfirms structural and electrical safety, reliability
    UL 60335-1, Household and Similar Electric Appliances-Safety; US and Canada, LINX 160 ProductTUV RheinlandConfirms structural and electrical safety, reliability
    Electromagnetic Compatibility CFR 47 Part 15 Subpart B LINX 160 ProductFCCTUV RheinlandConfirms compatibility with other electronic devices
    IEC 60950-1:2001; Information Technology Equipment-Safety POU11 Power SupplyTUV Rheinland of North America, Inc.TUV RheinlandConfirms electrical safety and reliability of power supply
    IEC/EN 60335-1, Safety of Household and Similar Electrical Appliances; LINX 160 ProductTUV RheinlandConfirms structural and electrical safety, reliability, electromagnetic compatibility
    IEC 60950-1/EN 60950-1 + A11; Information Technology Equipment-Safety; POU11 Power SupplyTUV RheinlandConfirms electrical safety and reliability of power supply
    CE Mark LINX 160 ProductCE logoTUV RheinlandConfirms structural and electrical safety, reliability of power supply, compatibility with other electronic devices

    Summary of LINX 140T-120V, LINX 140-120V and LINX Cooler Module Drinking Water System Certificates (US, Canada, Europe)

    CertificateMarkIssued byDescription
    WQA Gold Seal, NSF/ANSI 53; nitrate/nitrite) LINX 140T-120V and LINX 140-120V ProductsWater Quality AssociationWater Quality AssociationConfirms structural and material safety, performance benefits
    WQA Gold Seal, NSF/ANSI 53; nitrate/nitrite) LINX Cooler ModuleWater Quality AssociationWater Quality AssociationConfirms structural and material safety, performance benefits
    UL979:2005; Water Treatment Appliances LINX 140-120V ProductTUV Rheinland of North America, Inc.TUV RheinlandConfirms structural and electrical safety, reliability
    UL 60335-1, Household and Similar Electric Appliances-Safety; US and Canada, LINX 140-120V ProductTUV RheinlandConfirms structural and electrical safety, reliability
    Electromagnetic Compatibility CFR 47 Part 15 Subpart B LINX 140-120V ProductFCCTUV RheinlandConfirms compatibility with other electronic devices
    IEC 60950-1:2001; Information Technology Equipment-Safety POU10-120V Power SupplyTUV Rheinland of North America, Inc.TUV RheinlandConfirms electrical safety and reliability of power supply
    IEC/EN 60335-1, Safety of Household and Similar Electrical Appliances; LINX 140-240V ProductTUV RheinlandConfirms structural and electrical safety, reliability, electromagnetic compatibility
    IEC 60950-1/EN 60950-1 + A11; Information Technology Equipment-Safety; POU10-240V Power SupplyTUV RheinlandConfirms electrical safety and reliability of power supply
    CE Mark LINX 140-240V ProductsCE logoTUV RheinlandConfirms structural and electrical safety, reliability of power supply, compatibility with other electronic devices

    18. How do I become a LINX dealer?

    Sign a dealer agreement and purchase a minimum stocking inventory plus a starter kit that includes an FSA, and all the parts needed to service LINX systems. Thereafter you will be able to purchase as many systems as you want. To get an “exclusive” territory you must agree to a minimum monthly purchase volume based on the size and demographics of the area you want.