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Water treatment systems
Fill in all the gaps, then press "Check" to check your answers.
In a modern society, water is one of the things in life we often take for granted. When we turn on the tap, we expect water that is clean, safe and suitable for all
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tasks. But in recent years, there has been a growing concern about contamination of our
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supplies. We hear unsettling news accounts that make us question the
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of our water.
This publication provides a few guidelines for deciding whether you need to install a home water treatment system, and if so, how to select a system appropriate to your specific
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.
No water is 100
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pure. It contains contaminants from natural and man-made sources, such as minerals, gases, bacteria, metals and chemicals. Many of these contaminants are harmless. However, some impurities can adversely
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your health. Others damage equipment, stain laundry and fixtures and
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odors.
The first step in eliminating exposure to water-borne contaminants is to
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your situation. If your water comes from a public or municipal system, it is regularly tested for contaminants regulated by federal and state
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, such as microbial pathogens, radioactive elements and certain toxic chemicals. These are the contaminants that affect the safety of water and may
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health problems. Since public and municipal systems are regulated, a home water treatment system is seldom needed for health protection. Water quality problems
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as hardness, corrosivity, foaming, staining or bad tastes, smell or color are undesirable. However, these factors do not necessarily make the water
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