UV Water Purification Systems - Sterilizing Your Water Supply

As the name implies, ultraviolet light water purification systems use ultraviolet (UV) light to treat water and render microorganisms harmless. The UV light comes from a high intensity lamp that is usually enclosed in a protective quartz sleeve. When water passes through the water treatment system, the UV light damages the structure of any organisms and makes them sterile.

Although a UV water purifier requires electricity to operate, it draws about the same amount of energy as a light bulb. However, the lamp bulb itself needs to be replaced every year to ensure adequate intensity.

While whole house UV water purification systems are effective on most bacteria, viruses, molds, algae and other organisms, they do not remove chlorine, heavy metals, VOCs, or other chemicals. And countertop UV systems, which expose the water to UV lighting for less time, do not always remove all organisms.

UV purifiers average around $700 for a whole house water filter system, making them more expensive initially than other types of treatments. In addition, without a pre-filter system, contaminants can build up and reduce the intensity of the UV lamp. For these reasons, many people combine UV water purification systems with carbon filters, which also increases the costs.

As you can see, each of the three common water treatment technologies has its advantages and drawbacks. Deciding which is best depends on your budget and the type of water contaminants you want to remove or prevent. A test of your tap water will help you determine the appropriate water filtration system for your needs.

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About the Author:
C.J. Gustafson is a successful writer for http://www.water-filters-n-purifiers.com, providing consumer information on home water filters and water purification systems. She has researched and compared a variety of systems such as reverse osmosis water filters to help remove iron from her well water.