Frequent Questions

How does distillation work and what contaminants will it remove from my drinking water?

Distillation is an effective water treatment technology for commercial and household use. When water is purified by distillation, it is boiled in a container and the steam is sent into cooling tubes. The steam is condensed and then collected as purified water in a second container. The impurities in the water are left behind in the first container and can be discarded. The distillation process removes almost all impurities from water. Distillers are commonly used for removing nitrates, bacteria, sodium, hardness, dissolved solids, most organic compounds, and lead. Contaminants that easily turn into gases, such as gasoline components or radon, may remain in the water unless the system is specifically designed to remove them. Distilled water may taste flat to some people because the water?s natural minerals and dissolved oxygen often have been removed (Water Health Series: Filtration Facts, EPA816-K-05-002; September, 2005). More filtration facts are available at
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