Highly effective against bacteria, viruses and other pathogens that are found in water, germicidal ultraviolet light deactivates the DNA of these organisms and destroys their ability to multiply and cause disease without chemically tainting the water. The UV light purifier is a simple mechanism, consisting of a special light bulb suspended in the pipe that connects your water source to your faucet. And although the high amount of energy that the Ultraviolet rays emit will not be visible to humans, it will be devastating to any microorganisms living in your water.
UV light is part of the light spectrum and is used most effectively as a non-chemical approach to disinfecting drinking water. Because nothing is added to the water that is being treated, the process is simple, inexpensive and requires very low maintenance. The bulb will be made of quartz, as glass will not allow the effective UV rays through, and will be enclosed by a metal sheath. UV light purifiers have numerous applications, and are usually installed under sinks in most homes. They can also be installed in:
There are also drawbacks to UV purification systems. They require a steady supply of electricity to power the UV lamp, and their capacity is limited by the size of the reservoir tank that holds water to be treated. Also, water can be re-contaminated after passing through the UV system, so taps and household pipes need to be cleaned and disinfected.
If your water is not purified at all before it reaches your home, you may need to invest in other decontamination measures to go along with the UV purifier. Furthermore, keep in mind that germ-free water does not necessarily mean particle-free or tasty water—you may want to combine your germicidal light purifier with a water softener to improve water quality, and perhaps a smaller filter designed for a water jug or faucet to improve the taste of your drinking water.