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Salt Free

Many water supplies, municipal and well, contain hardness minerals (calcium and magnesium). These minerals form a scale and create problems in water heaters, washing machines, dishwashers, coffee makers, humidifiers and plumbing systems. Clearwater Scale Prevention Systems are designed to eliminate these problems providing your family with a refreshing difference, saving you money now and in the years ahead.

Clearwater SCALE PREVENTION SYSTEMS, feature FILTERSORB SP3® Technology. This technology transforms the calcium and magnesium carbonate (temporary hardness) of the water into mechanically stable and heat resistant calcite crystals (nanometer size) which no longer cause lime deposits. The calcium and magnesium crystals are rinsed away.

     The Filtersorb SP3 media has been tested and meets NSF 61 standard.
     This is an independant test for health effects that was performed by the WQA
     Water Quality Association.

• No Electricity Required
• No Backwashing Means No Drain To Install and  No Water Wasted
• No Maintenance
• Conditioned Water Without The Slippery Feel
• 50% Less Soap Or Detergents Required
• No Scale Build-Up On Fixtures And Appliances
• Leaves In Beneficial Minerals In Crystal Form
• No Salt Bags, No Resin, No Hassles 
 • No Softener Bans

Green Technology - Clearwater systems meet or exceed all green initiatives as a member of the U.S. Green Building Council. Help save our environment and Go Green!
Environmentally Friendly - Clearwater systems utilize materials that do not leach harmful chemicals back into the ground water supply thus conserving our most precious resource "water"
No Monthly Maintenance - No monthly maintenance required on systems saving you time and money.
No Corrosive Salts or Chemicals - No more 40lb bags of salt or worrying about corrosion to pipes or appliances caused by salts. Salt free water is great for plants and pets and does not require expensive RO systems.
No Slimy/Slippery Feel - Your water will be smooth and gentle "sodium free". No more slippery can't get the soap off feeling.
Third Party Tested & Certified -  System is WQA Gold Seal Certified and Tested to NSF/ANSI Standard 42 for material safety and structural integrity in all 50 states, including California.
No Wasted Water or Electricity -  Clearwater systems do not require electricity or backwashing. Save money and water with zero electricity usage or water waste.

Filtersorb SP3 Q&A


Who manufactures Filtersorb SP3 Anti-scale media?

The research, development, and manufacture of Filtersorb SP3 was initiated by our sister companies CWG Corporate and Watch Water in Germany. For over 20 years, CWG Germany has been a leader and manufacture in the water treatment industry and has build a solid reputation throughout Europe/Eurasia for their advanced water treatment manufacturing capabilities. CWG Germany is recognized for their state-of- the art commercial Reverse Osmoses systems.  In addition, CWG Germany manufactures and produces specialty chemicals and Medias for commercial and residential water treatment.  In Germany and throughout Europe, CWG Germany is known as the “Mercedes-Benz” of manufacturing for water treatment equipment and chemicals. Advanced precision engineering, research, development and manufacturing is the standard for CWG Germany.
Why did CWG develop this state-of-the art catalytic media for scale control?

Our environmental safe Filtersorb SP3 anti-scale media was initially developed by Watch Water Germany to serve as an alternative to commercial softeners used for scale control. Because commercial softeners discharge sodium into waste water supplies during the regeneration process, many of our European companies were faced with expensive discharge government permits and needed a cost effective alternative. Another reason for the development of the Filtersorb SP anti-scale media was to address the heightened concern by European health and research agencies that through the usage of residential softeners in second and third world countries, calcium and magnesium were being removed from home water supplies and causing serious health problems due to the lack of these vital minerals and the excess of sodium in the drinking water. The Filtersorb SP3 anti-scale media developed by CWG Group addresses both of these concerns and is a major break through in the anti-scaling water treatment market for both commercial and residential applications and has proven to be a successful alternative to commercial and residential softeners.
Why is Filtersorb SP3 anti-scale media years ahead of the competition?

CWG-Germany has built on its existing technology and 20 years experience, and through their advanced engineering and research and development team, have made a major break through in the development of their catalytic media. The Filtersorb SP3 media is manufactured in a clean room environment under NSF regulations and has a precise automated and controlled manufacturing cycle which goes through multiple automated manufacturing processes. CWG Germany has expanded over the last five years and added a new 60 thousand square foot state of the art facility to increase manufacturing capabilities and guarantees the highest quality product to their customers’ world wide. CWG Germany, unlike other companies, has made the multiple million dollar commitments in research, development, special automated manufacturing equipment in order to produce top of the line catalytic media for scale control. CWG Germany provides the only advanced perfectly round and sized catalytic media on the market today. The CWG Germany media guarantees the largest surface area with highest conversion capacity in the market. While other manufactures are providing older technologies CWG Germany has advanced to the forefront with their ongoing commitment to this advanced technology. 
How does the CWG Filtersorb SP media prevent scale?

The Filtersorb SP3 media prevents the formation of scale that forms on heating elements and on the pipes and hardware of plumbing systems. The media does this by accelerating the transformation of the calcium and magnesium minerals into harmless “Nano” particles. When the inlet water goes into the water conditioner tank, the up flow pulls the water through the fluidized Filtersorb SP3 media which then acts as a catalyst and pulls the hardness minerals of calcium and magnesium out of the solution and then transforms these minerals into inactive Nano crystal particles. Because the hardness minerals have been transformed into Nano particles, these Nanoscopic particles make their way through plumbing systems without attaching on to pipes, fixtures, valves, or heating elements. Several years of testing has showed that the calcium and magnesium bonds cannot attach to any kind of surface resulting in 99% scale prevention.     
How does the CWG Filtersorb SP process work?   
The Filtersorb SP3 anti-scale media is specially designed and manufactured to prevent harmful scale build up. Our anti-scale media is unique because the surface of the media is specially manufactured to be hard and similar to a ball bearing which protects the media from shearing off and results in a better operational product with a much longer life expectancy. As the inlet water flows into the water conditioner tank, the up flow pulls the water which then passes through the Filter SP3 media. When contact between the media and water has been made, the Filtersorb SP3 acts as catalyst and converts the hard minerals into in active nano crystal particles.  These nano crystallized particles break off and flow freely through the system without attaching on to pipes and other hardware components.  A secondary benefit is that Filtersorb SP3 media process has a descaling effect on the existing scale already present in pipes, hardware, and equipment.  A third benefit is that the Filtersorb SP3 Media also prevents corrosion by adding a 30 micron protective layer to the surface of the pipes and hardware. The overall process of Filtersorb SP3 is virtually maintenance free and does not require backwashing, salt, or electricity.
What is the main difference between water-softening unit and Filtersorb SP3?

The “classical” water-softening unit operates on the basis of ion exchange; exchanging calcium and magnesium ions in water with an equivalent amount of sodium (Salt). When a water softener is used, the result is not only soft water, but also increased sodium content in the water supply.  This added sodium content has raised health concern by many government officials. Additionally, these softening units require water for backwashing and common Brine water “salt water” for regeneration. For example, in order to regenerate 100 liters of softening resin, up to 25 kg of salt per regeneration cycle is required.   This means an added costly expense of salt is incurred for each and every regeneration cycle. The Filtersorb SP3 water media acts as a catalyst by accelerating the transformation of the calcium and magnesium minerals into harmless “Nano” particles. When the inlet water goes into the water conditioner tank, the up flow pulls the water through the fluidized Filtersorb SP3 media which then acts as a catalyst and pulls the hardness minerals of calcium and magnesium out of the solution and then transforms
these minerals into inactive Nano crystal particles. Because the hardness minerals have been transformed into Nano particles, these Nanoscopic particles make their way through plumbing systems without attaching on to pipes, fixtures, valves, or heating elements. Filtersorb SP3 is a maintenance free system that does not require cost for salt, costs for water or for regeneration material.
Why is Filtersorb SP3 an up-flow configuration? Why is it not down-flow?

The Filtersorb SP3 is not a traditional down flow filter system. It does not trap the hardness nor does it exchange anything for the hardness like a traditional water softener. The Filtersorb SP3 media works as a catalytic media by causing crystallization of ions on the surface of the media while the water is in continual up flow. The inlet water flow in a SP water conditioning system is always in UPWARD motion from the bottom up in the filter housing. The media in the SP system always stays in a fluidized state when the water is flowing. The media is in constant motion and the flows are from the bottom to the top. It is for this reason the media cannot filter out particles in the water. All the hardness that enters the SP system is pulled out of solution and forms crystals on the surface as they pass by the SP media. They attach to the media for a short time until they grow to Nano size and break free from the media and pass along with the water flow. The crystals can not attach to any surfaces thus preventing any scale build up
Can I replace a traditional water softener system with a SP water conditioner and what difference in performance should I see between the two systems?

Yes, you can remove a traditional softener and replace with a SP3 conditioner system. There will be a difference with the new SP3 system in that the customer will not feel the slippery feeling that he had with the traditional softener. This is because the hardness was not removed but was crystallized. The customer will have all the other great advantages like up to 30% less detergent usage and cleaner laundry. The additional advantage is that he will not have sodium in his service water. IMPORTANT! The customer may experience a salty taste or slight odor in the water for a short period of time, AFTER HE REMOVES THE OLD SOFTENER. This happens because the new SP water conditioner will clean the pipes that may have a sodium and/or calcium build up and residue in the pipes in the house from the old softener. However, this lasts only for a short time until the pipes are clean. The customer can be assured that the will never again have a sodium or calcium build up in the pipes, water heater, and appliances.

Will I feel any different when I shower?
Your water from a SP system will feel like silk and will have noticeable improvements in the feel of your hair and skin.

Do microorganisms accumulate in the catalyst unit and must the material regularly be disinfected?

No. Because the material does not demonstrate filtration effects, remember the media is always suspended up flow in the water when in service and microorganisms are repressed. Disinfecting the SP3 granulate in most cases is not required.
Is a central control valve necessary or does the system function without backwashing?

Because the SP3 granulate is continually in up flow fluidization no particles are held up in the media and no backwashing process is required. You might say the media is always in backwash during service because it is always suspended in the water in a fluidized state. A central control valve is therefore not used in a SP3 water conditioning system. There is no need for backwash. The system uses a simple up flow in and out head.
Can the Filtersorb SP3 treat hardness up to 100 grains hard?

The Filtersorb SP3 system can treat up to 100 grains hard water. All CWG systems calculations are made based on a hardness of 25 Grains or less. The reason for this is that 95%+ OF ALL INSTALLATIONS FALL INTO THIS CATEGORY WORLD WIDE. The Filtersorb SP3 has been used on waters with hard water up to 100 grains hard. CWG can provide calculations for over 25 grains hard if need. Please contact our support team (847) 462-9000.
Why does the Filtersorb SP3 media not need to be backwashed? What keeps the media bed from getting fouled?

It is important to point out that we have no filtration effect with our SP3 media. Remember we are in a continuous up flow backwash situation and therefore we do not filter out anything from the water. So we have no accumulation of anything in the suspended bed of SP3 media. The SP3 media works as a catalyst only and does not need to filter out particles, not as a filtration media.
What happens at night time when there is no water flow?

The filter bed is not suspended when there is no water flow. The filter bed will rest. For top performance it is recommended that the filter media rests 4-6 hours per day. This is never a problem in a residential installation. In commercial application please contact CWG-USA for proper design criteria.
What if the bed gets contaminated with bacteria?
This should not be a problem. The continuous back wash is the best action to keep the media clean. The media nevertheless can be treated with chlorine up to a maximum of 2-3 ppm for short periods to kill bacteria and to remove organic matter.
What is the maximum operating temperature of the SP3 media?

The SP media will tolerate 122° F Please consider that all the other equipment is much more limited regarding the water temperature.
What is the minimum operating temperature of the SP media?

The SP can go down to 38° F. Please consider that all the other equipment is much more limited regarding the water temperature. (Please keep from freezing the media)
What is the pH range of the media? What is the low and high pH range?

It works in the range of 6 to 9 pH, but we also found that it works at pH 5.5 as well. What you can always do is stay in the range of the pH range allowed for drinking water by the local municipal water treatment in your market area and you will never have a problem.
What is the life time of the media?

Over the last 6 years, thousands of systems have been installed around the world in real life situations. These systems have been tested with the same performance as the day one when installed over the last six years so conservatively we estimate a minimum of 5 years but feel confident the media will last 10 years or longer.
Can I destroy the media or can it get fouled?  What special precautions should I take?
The same precautions you would take with softening resin. Hydrogen sulfide and oil in the water will foul the media. You do not want to have chlorine over 3 ppm. The media is strong and should have at least 5 plus years of life time with normal usage. We always recommend a whole house carbon pre filter in front of the SP3 conditioner.
How do I keep the media from washing out of the unit when I start it up for the first time and put it into service?

We always recommend that you soak the media for 15 minutes before start up. You also should run water through the filter tank and media before installing in the piping system. This will assure that any possible fines from shipping in the tank and media will be washed out of the tank before hook up. This assures that the media is saturated with water and will not accumulate at the top of the housing when filled with water. You also have an upper basket that will keep the media from going into the service pipes in the home.
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