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Soft water

Soft water is the term used to describe types of water that contain few or no calcium or magnesium ions. The term is usually relative to hard water, which does contain significant amounts of such ions.

Soft Water usually comes from peat or igneous rock sources, such as granite but may also derive from sandstone sources, since such sedimentary rocks are usually low in calcium and magnesium.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Soft_water". A list of authors is available in Wikipedia.
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