Pure water systems are made by a variety of companies. With prices as low as $40 and as high as several thousand, you might need to know how to choose an appropriate system for your home. This shopping guide should help.
Purification Steps
Some purifiers include only one step. Others include multiple steps. The purpose of including additional steps is to remove specific contaminants.
Examples of the steps and the contaminants removed are included in the following paragraph.
Cysts can be removed through reverse osmosis or sub-micron filtration. Lead can be removed through reverse osmosis or ion exchange. Chemicals like chlorine can only be removed through the process of adsorption. Different absorptive materials are needed for different chemicals. For example, carbon is the best material for the removal of chlorine, but is not sufficient for the removal of cancer-causing THMs.
