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The term disinfection is the process of destroying or preventing the growth of disease-carrying microorganisms. But what does this really mean? There are two main types of disinfection: chemical and physical. Chemical disinfection is when a chemical is added to a substance, depending on the substance being disinfected, whereas with physical disinfection no chemical is added. City water treatment facilities normally utilize chlorine/chloramines (chemical alteration) to disinfect the water supply. However, there are many types of microorganisms such as cryptosporidium and giardia which are typically immune to chlorine/chloramine. The Evo UV System utilizes a physical alteration and kills those types of chlorine resistant the water will taste the same, smell the same and no new compounds will be formed. The water will simply become free of microorganism contamination.
Simply put, city water/municipal water requires a minimum UV dose of 16mj to properly disinfect the water supply. Well water requires a minimum dose of 30mj to disinfect the water supply and surface water (springs, lakes, etc.) requires 40mj. The Evo UV Systems will emit a constant minimum dose of 30mj up to 15 GPM. This will give you the ultimate protection and safeguard your family against a wide array of microorganisms and bacteria. This is why the Evo UV System (physical alteration) is so important and is the ultimate choice in protecting you and your family.
As there are many different kinds of microorganisms that can be found in drinking water there are different levels of UV energy (dose) required to inactivate each one
For example, E.Coli will require a slightly different dose of UV light to inactivate than Cryptosporidium as they are genetically different. The good news is that typical bacteriological contaminants that are found in water are all easily inactivated using UV light. E. coli for example is inactivated at a dose of 6.6 mJ/cm² and both Giardia lamblia and Cryptosporidium are eradicated at dose levels less than 10 mJ/cm². Although UV is effective against all forms of bacteriological contaminants, viruses typically require the highest dose level for complete destruction. In some cases, such as Adenovirus, a UV dose of 165 mJ/cm² is required for inactivation. As this dose is typically much higher than what traditional UV systems are rated for, a multi-barrier approach (using chlorine or chloramine in addition to UV) is typically used to address the virus inactivation (typically used in municipal applications).
Please see the Microbiological Destruction Chart for a complete listing of UV dose levels required for inactivation.
At the 254 nm wavelength, UV light alters the microorganisms’ DNA. As we all know, DNA is a form of genetic coding that all of us have. Within each DNA strand, there are different sequence codes, with each sequence coding for different characteristics. The DNA strand of a microorganism is very simple with the major coding being for replication. UV light is absorbed quite readily at this one spot in the DNA strand causing it to break the bond. This then causes the microorganism to become sterile, no longer able to replicate within a properly designed UV system, the process of disinfection occurs very rapidly within the system. As water runs through a UV reactor it is exposed to the UV light that the lamp gives off causing a genetic change in the microorganisms that are present in the water. This genetic change causes the microorganisms to no longer have the ability to replicate and produce colonies. Keep in mind that the only thing that microorganisms do in life is replicate and make colonies, this is why we get sick if we consume them in large amounts through our drinking water, so microorganisms that cannot replicate are ones that we do not have to be concerned with. These organisms can enter our system and will pass right through without causing any sickness or ailment.
Low-pressure lamps are monochromatic in nature, emitting their spectral output at a single wavelength.
Choosing the right whole house filter and salt-free softener for your home can be an overwhelming decision, but we are here to help. If you have ANY questions, feel free to call us during business hours and we’ll be happy to speak with you as long as necessary. If speaking on the phone is not your thing, you can also use the form on our contact page, and we’ll respond as soon as humanly possible.
All Evo systems are made with certified components and designed for peak performance. Cities and Municipalities often vary the amount of chemicals they introduce into your water throughout the year and in doing so it can affect the longevity of your filter. Replacing your filters once a year ensures that your system is operating at peak performance at all times.
The Evo filters also utilize a Catalytic Activated Coconut Shell Carbon Block technology giving the best filtration possible without the carbon dust, channeling, and flow issues associated with loose granular coal base carbon found in traditional tank-style filters. Simply put, whole house water filtration has Evolved and so has the way you filter your water.
All Evo systems are made with certified components and designed for peak performance. Cities and Municipalities often vary the amount of chemicals they introduce into your water throughout the year and in doing so it can affect the longevity of your filter. Replacing your filters once a year ensures that your system is operating at peak performance at all times.
The Evo filters also utilize a Catalytic Activated Coconut Shell Carbon Block technology giving the best filtration possible without the carbon dust, channeling, and flow issues associated with loose granular coal base carbon found in traditional tank-style filters. Simply put, whole house water filtration has Evolved and so has the way you filter your water.