INVESTMENT ANALYSISCLEARWATER IONIZATION SYSTEM

Your investment in a Clearwater ionization system will pay for itself very quickly insavings of chlorine and depreciation on equipment. Fill in the numbers on the chart below to determine your pay back period.

CHLORINE vs. IONIZATION EXPENSE COMPARISON

Annual chlorine/algaecide/chemical expense $ ________

Annual oxidizer expense (used with ionizer) Subtract - $ ______

ACTUAL CHEMICAL SAVINGS $ ______ (a)

DEPRECIATION OF EQUIPMENT

Estimated savings per year on depreciation of equipment damaged due to chlorine use $ (b) TOTAL COST SAVINGS(a + b) $ (c)

IONIZATION INVESTMENT $ (d)

ESTIMATED PAYBACK PERIOD (d / c) = ________ Years

(If under 1.0, multiply by 12 to get figure in months)

PROTECTING OUR ENVIRONMENT WITH SPACE-AGE TECHNOLOGY

“Clearwater Enviro Technologiesuses the same technology that NASA used aboard the Apollo spacecraft to purify water. We didn’t use chlorine in space, so why on Earth do we use it here?” Buzz Aldrin, Apollo 11 Astronaut

Clearwater-Enviro.com

A revolution in water purification

Clearwater, Florida

Copper / Silver IonizationA revolution in water

purification Residential

Commercial

Industrial

2

ApplicationsThere are several applications where the Clearwa-ter copper/silver ionization can be applied. Just a sample of them include:

Residential Swimming Pools

Hot Tubs

Agricultural/Irrigation

Marine inhabitant aquariums PoultryLakes, ponds, quarries

Cisterns

Fountains Cooling Towers

Hospital Water Supplies

Drinking Water Systems

Commercial Swimming Pools

7

US ENVIRONMENTAL PROTECTION AGENCY W

PREFORMANCE COMPARISONChlorine vs. Clearwater Purifier

CHLORINE PURIFIER

harmful to eyes? YES NOirritating to skin? YES NObleaches hair? YES NOexplosive, unsafe to handle? YES NOdangerous to store? YES NOfades swim suits? YES NOevaporates? YES NOtoxic to landscaping? YES NOevaporates? YES NOtoxic to landscaping? YES NOunpleasent to smell? YES NOconstant hassel? YES NOlinked to cancer? YES NOtoxic to lungs? YES NOrequires daily maintenance? YES NOabsorbs through skin? YES NOleaks hazardous benzine from pipes? YES NOforms carcinogenic thrihalomethane? YES NOcreats chloramines? YES NOrequires use of cyanuric acid? YES NOharmful to the evironment? YES NOcosts $100’s a year to operate? YES NO

kills algae? YES YESkills bacteria? YES YESkills viruses? NO YES

IONIZATION QUESTIONS AND ANSWERS

Excerpt from the EPA’s book“Quality Criteria for Water”.

ARE COPPER / SILVER IONS SAFE?

What is copper/silver ionization?An ion is an atom, or group of atoms, that possesses an electrical charge. An atom is like a tiny solar system, with a nucleus in the middle and one or more electrons orbiting around the outside. Inside the nucleus are positively charged particles called protons. The electrons are negatively charged. An atom usually contains an equal number of protons and electrons. An ion gets its electrical charge by losing or gaining electrons. Copper/silver ionization is the electronic release of copper and silver ions.How do I know if ionization is taking place?Every ionizer features indicator lights or LCD displays that let you know ionization is taking place. Every unit also comes with an “ion” test kit that should be tested weekly. This indicates the unit is producing copper and silver ions. It is very simple to use and only takes a few minutes.What other testing is required with the ionizer?Normal testing of the pH and total alkalinity should be done on a regular basis. The most important is the pH. This should always be kept between 7.2 and 7.8, with preference on the lower end.Will I ever have to replace anything with the system?The electrodes are self-sacrificing and will eventually wear out. A new set of electrodes will be required and is simply screwed in place and the oldset discarded. The reagents for the test kit should be replaced every year. Your dealer has both electrodes and test kits in stock. How long will the electrodes last?The actual life-span of the electrodes depends on many factors - the size of the pool or body of water being ionized and water temperature being the main factors. Naturally, a swimming pool of 40,000 gallons will use up the electrodes about 4 times faster than a pool with 10,000 gallons. The warmer the water, the higher the ionizer will have to be set at, as more algae will grow in warmer water. The same can be said of chlorine.How hard is it to install the system?Your authorized dealer has been factory-trained to install the system. However, if you are doing it yourself, installation is very simple and can be done in about one hour in most cases. For a plumber, this is a very basic install. An installation manual is included with every unit. No special tools are required.What is the actual electrical consumption?Depending on how long the system runs each day and the size of the unit, the actual amount can vary. However, a regular household unit running 8 hours a day only uses about $3 a year in electricity. Will I ever have to use chlorine again?In most cases, some kind of an oxidizer is required, especially in warm water areas. The ionizer will kill algae, bacteria and viruses, but it will not oxidize or burn off the debris that gets in water. Residential applications can use a non-chlorine shock like potassium monopersulfate or even a corona-discharge ozone generator instead of chlorine, while most commercial applications will require a small free-chlorine residual at all times - still saving up to 80% on chlorine expenses.Are copper and silver ions safe?Absolutely! As you can see from the above excerpt from EPA’s “Quality Criteria for Water”, copper is actually required in our bodies, and silver is used worldwide in many applications (see “History of Copper /Silver Ionization on page 3). Silver is used by dentists, in water purification equipment, tableware, coins and in many other applications. You can’t say that about chlorine!

6 3

The Ancient Greeks were the First to Discover the Sanitizing power of copper.

Cryus the Greek, King of Prussia, car-ried water in silver flagons

on his many military expeditions to keep water fresh.

The Egyptians kept their water in silver containers to prevent contamination.

During the Plague-ridden Middle Ages, mothers knew to place a silver spoon in an infant’s mouth to ward off disease

History of Copper/Silver IonizationThe Clearwater Purification System uses technology that was actually used thousands of years ago, and has been used in various applications over the years….

When the science of bacteriology began its development in the late 19th century, the German obstetrician, F. Crede, observed that up to 79% of the children in institu-tions for the blind were there because of exposure to gonococcal opgthalmia during birth. He then instituted the application of a 1 % silver nitrate solu-

tion to newborn’s eyes. Consid-ered a medical milestone, this devastating disease was imme-diately cured and is still used today around the world on new-born babies.

It was NASA that harnessed what nature already knew, and designed an ionization system for their Apollo ights. The Johnson Space Center developed an electrolytic silver-ion

generator only slightly larger than a cigarette pack. The unit was mounted at various locations in the potable water supply and wastewater systems, and would dispense silver-ions to eliminate bacteria and viruses. Clearwater Enviro Tech was granted a license from NASA to commercially use their technology as the basis for its purication system. The company has been featured in NASA magazines, it’s “spin-off” products have been presented in NASA lectures across the country, and was nominated by the Johnson Space Center’s “Product Hall of Fame”, as one of the most successful companies using NASA technology.

Silver sulfadizine is the most widely used antibacterial treatment for burns or open wounds. Many people die from severe burns because of a lack of bacterial treatment.

Dentists for decades have used

silver to ll cavities because of its strong bacterial features.

Activated carbon lters, which remove objec-tionable odors and taste (like chlorine) can become highly contaminated with bac-teria before it’s useful life. Many companies impregnate the carbon

lter with silver to prevent bac-terial buildup.

Copper is frequently incorporated into paints and wood preservatives to inhibit the growth of

algae and invertebrate organisms.

Today, silver is used as the drinking water purication of half the world’s airlines….

…and in over 1,000 passenger ships and in many offshore drilling rigs.

Pool stores worldwide sell a copper-based algae-cide to help kill black algae - the toughest of all.

Early American pioneers moving west across the continent put copper and silver coins in large wooden water casks to provide them with safe drinking water on their long voyage. When the wagons rolled, the agi-tation caused the coins to discharge ions (an

electrically charged particle) in the water. The copper-ions killed algae while the silver ions killed bacteria and viruses.

“A drive to ban Chlorine isbecoming one of the most

significate environmental fightsin decades.”

USA TodayOctober 21, 1993

Is Chlorine Crisis Real?

“THE PRINCIPLES OF COPPER/SILVER IONIZATION”

If you can recall your high school chemistry days, an “ion” is an atom or group of atoms, that carries an electrical charge as the result of having lost or gained an electron. The atom’s charge is negative if it has an extra electron and positive if it is short an electron. A positively charged ion is called a “cation”, while a negatively charged ion is called an “anion”. To ionize something means to transform the atom into one of these two ionic forms. Ionization is the process in which a chemical combination breaks up into simpler electrically charged components (individual atoms or groups of atoms) called ions. The ionization process is related to the gaining or losing of electrons causing the atoms or group of atoms to become electrically charged. Clearwater Enviro Technologies, Inc. uses copper and silver as the basis for its technology, thus copper/silver ionization is the electronic release of copper and silver ions.

It is a well-documented fact that copper and silver ions will kill algae, bacteria, and viruses. Various forms of copper, silver, copper/silver ionization have been used for thousands of years to disinfect water and protect against infection from bacteria (see History of Copper/Silver Ionization on previous page). Several studies by major universi-ties have documented the effectiveness of the copper/silver ionization process. The atomic symbol of copper is Cu, while the atomic symbol of silver is Ag.

When copper and silver ions are released into the water, these cationic, surface-active ions are a potent biocide. The disinfection action takes place when the positively charged copper and silver ions form electrostatic bonds negatively charged areas on the microorganism cell walls. These elec-trostatic bonds create stresses, which lead to distorted cell wall perme-ability, minimizing the normal intake of life sustaining nutrients. Once inside an algae cell, copper and silver attack sulfur containing amino acid residues in the proteins used for photosynthesis (the process of converting light into usable food and energy). As a result, photosynthesis is blocked and lead to cell lysis and death. If the algae cell manages to live, the reproduction process is hampered by the presence of the copper ions and the spread of algae is held in check. Bacteria is killed, rather than suppressed.

Thomas A. Edison Winter Home, Ft. Myers, Florida

Have you ever noticed how clear the water is in a wishing well or fountain? All those coins you throw in for “good luck” are responsible for the clarity of the water. You won’t find chlorine or other sanitizers in the water! These coins are pro-ducing copper and silver ions (killing algae and bacteria) and leaving the water sparkling clear!

Clearwater Enviro Technologies’ ionization system will kill over 650 types of bacte-ria, viruses and protozoa. A sampling that the copper/silver ionization will kill:

• Amoebae dysenteriae • Proteus valgaris • Bacillius subtilis • Pseudomonas aeruginosa • Bacillius typhosus • Salmonella • Cryptosporidium • Saccharomyees cerevisiae • Endamoeba histolytica • Sarcina Flava • Escherichia coli (e. coli) • Shingella dysentiniae • Giardia lamblia • Shigella flexneria • Herpes virus • Staphylococcus aureus • HIV • Streptococus faecalis • Influenza A & B • V. cholera • Legionella pneumophila • Vaccinia virus

• Poliomyelitis virus • Vibrio cholerae

4

Cu Ag

The greatest benefit of copper/silver ionization is that the ions remain in the water providing a residual protection. They provide long-term, nontoxic purification and prevent against recontamination. Unlike most other types of sanitizers, the copper and silver ions remain in the water until they flocculate, or form masses with algae and bacteria and then become large enough to be removed by the filtering equipment. When the “used” copper and silver ions are removed, the microprocessor control box is always producing new copper and silver ions to continuously sanitize the water. Generally, the setting of the microprocessor is kept at the same setting, thus a proper amount of copper and silver ions are always in the water. If the test kit shows a copper-ion level too low, simply turn the control knob up a notch. If the level is too high, simply turn the control knob down a notch. The RS-50 and all CS models feature a LCD display that will show the actual milliamp charge going to the electrodes. Even with the unit turned off, the copper and silver ions remain in the water until they flocculate with algae and bacteria, and are then removed by the filtering system.

“THE CLEARWATER PURIFICATION SYSTEM”

The Clearwater purification system consists of a state-of the-art micro-processor control box and a scientifically designed set of elec-trodes composed of copper & silver that are set slightly apart from one another. Water is passed through a specially designed flow-cell chamber that houses the electrodes.The control box works by generating a precise, low-voltage, DC current (at milliamp levels) to the electrodes. These electrodes consist of a metal-based cathode and a metal-based anode. A current is passed between the cathode and the anode, thus producing copper and silver ions by normal plating. Basically, the current causes some of the outermost atoms of the electrodes to lose an electron, thus becoming positive ions. While the water is running through the chamber, many of these ions are swept away before they can reach the other side of the electrodes. As a result, copper and silver ions are dispersed into the body of water that is being purified.

The microprocessor control box controls the amount of ions introduced into the water. An adjustable transformer changes 115 or 230 volt AC current from the power source to a low-voltage DC current. The higher the charge, the more ions are released.A simple copper-ion test kit determines the amount of ions in the water. The electrodes were designed that when the proper copper-ion level is obtained, the silver level will be in the correct range also. Both the anode and cathode electrodes consist of the same high-grade mixture of copper and silver. The polarity is switched back and forth between the electrodes every 1-5 minutes (depending on the unit model) to prevent plating of the cathode - a process that reduces the electrode’s surface area over time. The polarity change assures equal wear and tear of the two electrodes and prolongs its life.

5

“THE PRINCIPLES OF COPPER/SILVER IONIZATION”

If you can recall your high school chemistry days, an “ion” is an atom or group of atoms, that carries an electrical charge as the result of having lost or gained an electron. The atom’s charge is negative if it has an extra electron and positive if it is short an electron. A positively charged ion is called a “cation”, while a negatively charged ion is called an “anion”. To ionize something means to transform the atom into one of these two ionic forms. Ionization is the process in which a chemical combination breaks up into simpler electrically charged components (individual atoms or groups of atoms) called ions. The ionization process is related to the gaining or losing of electrons causing the atoms or group of atoms to become electrically charged. Clearwater Enviro Technologies, Inc. uses copper and silver as the basis for its technology, thus copper/silver ionization is the electronic release of copper and silver ions.

It is a well-documented fact that copper and silver ions will kill algae, bacteria, and viruses. Various forms of copper, silver, copper/silver ionization have been used for thousands of years to disinfect water and protect against infection from bacteria (see History of Copper/Silver Ionization on previous page). Several studies by major universi-ties have documented the effectiveness of the copper/silver ionization process. The atomic symbol of copper is Cu, while the atomic symbol of silver is Ag.

When copper and silver ions are released into the water, these cationic, surface-active ions are a potent biocide. The disinfection action takes place when the positively charged copper and silver ions form electrostatic bonds negatively charged areas on the microorganism cell walls. These elec-trostatic bonds create stresses, which lead to distorted cell wall perme-ability, minimizing the normal intake of life sustaining nutrients. Once inside an algae cell, copper and silver attack sulfur containing amino acid residues in the proteins used for photosynthesis (the process of converting light into usable food and energy). As a result, photosynthesis is blocked and lead to cell lysis and death. If the algae cell manages to live, the reproduction process is hampered by the presence of the copper ions and the spread of algae is held in check. Bacteria is killed, rather than suppressed.

Thomas A. Edison Winter Home, Ft. Myers, Florida

Have you ever noticed how clear the water is in a wishing well or fountain? All those coins you throw in for “good luck” are responsible for the clarity of the water. You won’t find chlorine or other sanitizers in the water! These coins are pro-ducing copper and silver ions (killing algae and bacteria) and leaving the water sparkling clear!

Clearwater Enviro Technologies’ ionization system will kill over 650 types of bacte-ria, viruses and protozoa. A sampling that the copper/silver ionization will kill:

• Amoebae dysenteriae • Proteus valgaris • Bacillius subtilis • Pseudomonas aeruginosa • Bacillius typhosus • Salmonella • Cryptosporidium • Saccharomyees cerevisiae • Endamoeba histolytica • Sarcina Flava • Escherichia coli (e. coli) • Shingella dysentiniae • Giardia lamblia • Shigella flexneria • Herpes virus • Staphylococcus aureus • HIV • Streptococus faecalis • Influenza A & B • V. cholera • Legionella pneumophila • Vaccinia virus

• Poliomyelitis virus • Vibrio cholerae

4

Cu Ag

The greatest benefit of copper/silver ionization is that the ions remain in the water providing a residual protection. They provide long-term, nontoxic purification and prevent against recontamination. Unlike most other types of sanitizers, the copper and silver ions remain in the water until they flocculate, or form masses with algae and bacteria and then become large enough to be removed by the filtering equipment. When the “used” copper and silver ions are removed, the microprocessor control box is always producing new copper and silver ions to continuously sanitize the water. Generally, the setting of the microprocessor is kept at the same setting, thus a proper amount of copper and silver ions are always in the water. If the test kit shows a copper-ion level too low, simply turn the control knob up a notch. If the level is too high, simply turn the control knob down a notch. The RS-50 and all CS models feature a LCD display that will show the actual milliamp charge going to the electrodes. Even with the unit turned off, the copper and silver ions remain in the water until they flocculate with algae and bacteria, and are then removed by the filtering system.

“THE CLEARWATER PURIFICATION SYSTEM”

The Clearwater purification system consists of a state-of the-art micro-processor control box and a scientifically designed set of elec-trodes composed of copper & silver that are set slightly apart from one another. Water is passed through a specially designed flow-cell chamber that houses the electrodes.The control box works by generating a precise, low-voltage, DC current (at milliamp levels) to the electrodes. These electrodes consist of a metal-based cathode and a metal-based anode. A current is passed between the cathode and the anode, thus producing copper and silver ions by normal plating. Basically, the current causes some of the outermost atoms of the electrodes to lose an electron, thus becoming positive ions. While the water is running through the chamber, many of these ions are swept away before they can reach the other side of the electrodes. As a result, copper and silver ions are dispersed into the body of water that is being purified.

The microprocessor control box controls the amount of ions introduced into the water. An adjustable transformer changes 115 or 230 volt AC current from the power source to a low-voltage DC current. The higher the charge, the more ions are released.A simple copper-ion test kit determines the amount of ions in the water. The electrodes were designed that when the proper copper-ion level is obtained, the silver level will be in the correct range also. Both the anode and cathode electrodes consist of the same high-grade mixture of copper and silver. The polarity is switched back and forth between the electrodes every 1-5 minutes (depending on the unit model) to prevent plating of the cathode - a process that reduces the electrode’s surface area over time. The polarity change assures equal wear and tear of the two electrodes and prolongs its life.

5

6 3

The Ancient Greeks were the First to Discover the Sanitizing power of copper.

Cryus the Greek, King of Prussia, car-ried water in silver flagons

on his many military expeditions to keep water fresh.

The Egyptians kept their water in silver containers to prevent contamination.

During the Plague-ridden Middle Ages, mothers knew to place a silver spoon in an infant’s mouth to ward off disease

History of Copper/Silver IonizationThe Clearwater Purification System uses technology that was actually used thousands of years ago, and has been used in various applications over the years….

When the science of bacteriology began its development in the late 19th century, the German obstetrician, F. Crede, observed that up to 79% of the children in institu-tions for the blind were there because of exposure to gonococcal opgthalmia during birth. He then instituted the application of a 1 % silver nitrate solu-

tion to newborn’s eyes. Consid-ered a medical milestone, this devastating disease was imme-diately cured and is still used today around the world on new-born babies.

It was NASA that harnessed what nature already knew, and designed an ionization system for their Apollo ights. The Johnson Space Center developed an electrolytic silver-ion

generator only slightly larger than a cigarette pack. The unit was mounted at various locations in the potable water supply and wastewater systems, and would dispense silver-ions to eliminate bacteria and viruses. Clearwater Enviro Tech was granted a license from NASA to commercially use their technology as the basis for its purication system. The company has been featured in NASA magazines, it’s “spin-off” products have been presented in NASA lectures across the country, and was nominated by the Johnson Space Center’s “Product Hall of Fame”, as one of the most successful companies using NASA technology.

Silver sulfadizine is the most widely used antibacterial treatment for burns or open wounds. Many people die from severe burns because of a lack of bacterial treatment.

Dentists for decades have used

silver to ll cavities because of its strong bacterial features.

Activated carbon lters, which remove objec-tionable odors and taste (like chlorine) can become highly contaminated with bac-teria before it’s useful life. Many companies impregnate the carbon

lter with silver to prevent bac-terial buildup.

Copper is frequently incorporated into paints and wood preservatives to inhibit the growth of

algae and invertebrate organisms.

Today, silver is used as the drinking water purication of half the world’s airlines….

…and in over 1,000 passenger ships and in many offshore drilling rigs.

Pool stores worldwide sell a copper-based algae-cide to help kill black algae - the toughest of all.

Early American pioneers moving west across the continent put copper and silver coins in large wooden water casks to provide them with safe drinking water on their long voyage. When the wagons rolled, the agi-tation caused the coins to discharge ions (an

electrically charged particle) in the water. The copper-ions killed algae while the silver ions killed bacteria and viruses.

“A drive to ban Chlorine isbecoming one of the most

significate environmental fightsin decades.”

USA TodayOctober 21, 1993

Is Chlorine Crisis Real?

2

ApplicationsThere are several applications where the Clearwa-ter copper/silver ionization can be applied. Just a sample of them include:

Residential Swimming Pools

Hot Tubs

Agricultural/Irrigation

Marine inhabitant aquariums PoultryLakes, ponds, quarries

Cisterns

Fountains Cooling Towers

Hospital Water Supplies

Drinking Water Systems

Commercial Swimming Pools

7

US ENVIRONMENTAL PROTECTION AGENCY W

PREFORMANCE COMPARISONChlorine vs. Clearwater Purifier

CHLORINE PURIFIER

harmful to eyes? YES NOirritating to skin? YES NObleaches hair? YES NOexplosive, unsafe to handle? YES NOdangerous to store? YES NOfades swim suits? YES NOevaporates? YES NOtoxic to landscaping? YES NOevaporates? YES NOtoxic to landscaping? YES NOunpleasent to smell? YES NOconstant hassel? YES NOlinked to cancer? YES NOtoxic to lungs? YES NOrequires daily maintenance? YES NOabsorbs through skin? YES NOleaks hazardous benzine from pipes? YES NOforms carcinogenic thrihalomethane? YES NOcreats chloramines? YES NOrequires use of cyanuric acid? YES NOharmful to the evironment? YES NOcosts $100’s a year to operate? YES NO

kills algae? YES YESkills bacteria? YES YESkills viruses? NO YES

IONIZATION QUESTIONS AND ANSWERS

Excerpt from the EPA’s book“Quality Criteria for Water”.

ARE COPPER / SILVER IONS SAFE?

What is copper/silver ionization?An ion is an atom, or group of atoms, that possesses an electrical charge. An atom is like a tiny solar system, with a nucleus in the middle and one or more electrons orbiting around the outside. Inside the nucleus are positively charged particles called protons. The electrons are negatively charged. An atom usually contains an equal number of protons and electrons. An ion gets its electrical charge by losing or gaining electrons. Copper/silver ionization is the electronic release of copper and silver ions.How do I know if ionization is taking place?Every ionizer features indicator lights or LCD displays that let you know ionization is taking place. Every unit also comes with an “ion” test kit that should be tested weekly. This indicates the unit is producing copper and silver ions. It is very simple to use and only takes a few minutes.What other testing is required with the ionizer?Normal testing of the pH and total alkalinity should be done on a regular basis. The most important is the pH. This should always be kept between 7.2 and 7.8, with preference on the lower end.Will I ever have to replace anything with the system?The electrodes are self-sacrificing and will eventually wear out. A new set of electrodes will be required and is simply screwed in place and the oldset discarded. The reagents for the test kit should be replaced every year. Your dealer has both electrodes and test kits in stock. How long will the electrodes last?The actual life-span of the electrodes depends on many factors - the size of the pool or body of water being ionized and water temperature being the main factors. Naturally, a swimming pool of 40,000 gallons will use up the electrodes about 4 times faster than a pool with 10,000 gallons. The warmer the water, the higher the ionizer will have to be set at, as more algae will grow in warmer water. The same can be said of chlorine.How hard is it to install the system?Your authorized dealer has been factory-trained to install the system. However, if you are doing it yourself, installation is very simple and can be done in about one hour in most cases. For a plumber, this is a very basic install. An installation manual is included with every unit. No special tools are required.What is the actual electrical consumption?Depending on how long the system runs each day and the size of the unit, the actual amount can vary. However, a regular household unit running 8 hours a day only uses about $3 a year in electricity. Will I ever have to use chlorine again?In most cases, some kind of an oxidizer is required, especially in warm water areas. The ionizer will kill algae, bacteria and viruses, but it will not oxidize or burn off the debris that gets in water. Residential applications can use a non-chlorine shock like potassium monopersulfate or even a corona-discharge ozone generator instead of chlorine, while most commercial applications will require a small free-chlorine residual at all times - still saving up to 80% on chlorine expenses.Are copper and silver ions safe?Absolutely! As you can see from the above excerpt from EPA’s “Quality Criteria for Water”, copper is actually required in our bodies, and silver is used worldwide in many applications (see “History of Copper /Silver Ionization on page 3). Silver is used by dentists, in water purification equipment, tableware, coins and in many other applications. You can’t say that about chlorine!