How It Works & what makes us different

CL Free ELIMINATES the need for Chlorine or Salt


The CL Free Pool system is a CHLORINE ELIMINATION SYSTEM not a Chlorine reduction system.

We use two processes to make this happen. Electronic Ionization & Oxidation.

#1 Ionization

(this is the sanitizer) 

Copper has been used for centuries to purify water. Copper ions (electrcially charged particles) became popular over forty years ago and was developed by NASA water chemists for the Apollo Space Program to provide safe drinking water without using dangerous chemicals.

Copper Ionization has been approved by the EPA as a pool and drinking water sanitizer. Copper is also one of the best methods to eliminate algae and is the main ingredient in almost every popular pool chemical algaecide  product for over 30 years.

The Digital Pool Controller has a microprocessor which controls the production of copper ions into the  water as it passes through the CL Free Flow Chamber. Our Controller has 8 different power levels to accommodate pools up to 35,000 gallons.

After passing through the flow chamber the water returns to the pool, where the copper ions remain to provide  latent protection against viral, bacteria, algae, fungus and mold.

Copper Ions ARE NOT affected by bather load, heat or sunlight.

The  level of copper ions are precisely maintained at a healthy level of .5  to .7 parts per million by the Digital Pool Controller. 

At this level, you could  drink two and a half gallons of pool water a day and not even get the minimum daily requirement of copper found in a multi-vitamin!. Our System maintains the Copper Ions on a DAILY basis.
The Computer Controller will only release copper ions for ONE hour in a 24 hour period. In order to  maintain the .5 to .7 parts per million of Copper Ions you have an  unlimited number of maintenance power levels to choose from. The power level selected is based on the size (gallons) of your Pool.

#2 Oxidation

(removes suntan lotion and body oils)

Electric Oxidation is achieved by sending our low voltage D/C current to a set of Platinum coated Titanium plates in the Flow Chamber. The current will cause a process called Hydrolysis.


Hydrolysis creates an electro-physical separation of  the water molecules (H2O) into free oxygen molecules and hydroxyl  radicals (OH). It is this process which also eliminates (oxidizes) body  oils, sun screens, tanning lotions, and the organic material that is  killed by the Copper Ionization. These two powerful oxidizers are  natural and non-caustic.

We offer the ONLY completely Digital controller in the market.

CL Free is the only company that can Oxidize AND Ionize at the same time.

Most  all other systems are just simple mechanical  switched silver/copper,  silver/ brass or zinc systems. These types of systems just reduce the  amount of Chlorine you use every week and have ABSOUTLY no methoid to  oxidize. Without an oxodizer the water will become cloudy from the body  oils and suntan lotion.

Other  so called "Chlorine Free" systems will mention somewhere in the fine  print that you will need to add a Oxidizer once or twice a week to keep  the pool from getting cloudy.
The most common oxidizer is Chlorine but they may also mention bleach, hydrogen peroxide or a non-chlorine shock.

All of these products (except Chlorine) cannot  be  measured so you do not know what level to add. These products are just  as bad for you as chlorine, and can become toxic if used improperly.

CL  Free's combination of the Digital controlled Oxidation and Copper Ionization ensures a pristine, sparkling pool, without the danger or  expense of harsh chemicals.

Easier, safer, and more effective than chlorine, salt, bromine, ozone, or Baquacil.

Better for you, your pool and our environment.


EPA approves copper ionization as an antimicrobial   agent


The EPA approves copper ionization as an antimicrobial agent to control  deadly infections. 

To quote the EPA, “For the first time, copper ion systems can be marketed legally in U.S. using public health claims”.

The   Environmental Protection Agency by announcing this major breakthrough of approving copper ions in protecting public health and playing a key role in preventing infections was the result of extensive real world testing. 

Rigorous analysis by independent lab and hospital testing showed elimination of bacterial, fungal and viral pathogens within minutes. The list includes   superbugs (MRSA – Methicillin-Resistant Staphylococcus aureus), E. coli,   streptococcus, fungi, influenza virus, bird flu, VRE (Vancomycin-resistant   Enterococci), Acinetobacter baumanni, Clostridium difficile, molds,   (Aspergillus niger), Legionella pneumophila. By using copper ion systems, we   can help prevent over 2 million infections, save over 100,000 lives and the   estimated $30 billion dollars in overall health care costs.

The variety of applications for this type of equipment is far ranging. 

It includes Pools, Spas, Fountains, HVAC equipment, Cooling towers, Hospitals, Food and Potable water systems. 

By preventing and combating growth of Viral, Bacteria, fungus, algae and mold in water treatment systems, copper ion systems will play a major role in non-toxic environmentally friendly methods of insuring the public health in both public and private spaces.

Numerous independent laboratory tests from NASA, health departments, and universities, and many years of field testing have confirmed the exceptional sanitizing ability of copper ionization. Studies further show that using copper can be   effective against E. coli, Pseudomonas, Legionella Pneumophila (Legionnaires’   disease), Staphylococcus, Streptococcus, Salmonella, and other pathogens—some of which have proven to be resilient even to high levels of chlorine.