What is meant by the term water hardness?
Hardness is a property of water derived mainly from the presence of calcium and magnesium, although other natural minerals may also contribute hardness to water. In water, these minerals exhibit lathering properties and react with soap to form undesirable precipitates such as the slimy bathtub ring, and also combine with minerals in water heaters to form efficiency robbing scale on tank walls and in pipes.

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1. What is meant by the term water hardness?
2. Why does the taste and odor of water in Highland Village sometimes change?
3. Why does the water sometimes look brown or yellow?
4. Why does my water appear cloudy or milky at times?
5. How much fluoride is in my water?