Types of Water Explained

“Water” has become a much more complicated term in the last 20 years! There are a lot of confusing descriptions out there. Here’s a list of some of the commonly used terms to help clear up the confusion. Be aware, that it’s our belief that just because you can take some things out of water, doesn’t automatically mean you should. Read about what Kangen Water® is to see why we believe it’s a better choice than any of the options below.

Bottled water

Most of us believe that bottled water is a safer, cleaner and healthier choice than tap water, but that isn’t necessarily true. Bottled water comes from a variety of sources. It’s been reported that about 25 percent of the bottled water we consume (in the United States) has come from a municipal water supply. Dasani and Aquafina are two brands who use a local water supply – tap water – as a basis for their products. It then passes through a variety of purification techniques which may include reverse osmosis, deionization, carbon filtration, etc.


The U.S. Food and Drug Administration (FDA) regulates the production of bottled water as a food product. Beverage companies are therefore required to label their products in such a way that describes where their water comes from and whether or not it’s been purified or carbonated. Classifications include artesian (from a well that taps a confined aquifer), drinking, natural (from a natural source where the natural chemical (mineral and trace elements) composition of the water has not been altered as a result of treatment process), purified, mineral (no added minerals, but containing not less than 250 parts per million total dissolved solids), spring (from a spring) and sparkling (has the same amount of carbon dioxide that it had at emergence from the source).

Bottled water, while certainly a healthier choice than a soft drink, can have a down side. It may be acidic, lack essential minerals, contaminated with toxins from the plastic it’s bottled in. It can be expensive and uses vast amounts of resources to bottle and ship.

Deionized water

Deionized water has had ionized impurities and minerals removed from it. Bacteria or pathogens are not removed in this process and may be present.

Distilled water

Distilled water is produced by condensing water into vapor and then collected, leaving behind and solids. Distilled water is mineral-free and is useful for irons and appliances which may be harmed by a mineral buildup. Distillation does not guarantee the absence of bacteria unless the containers are also sterilized.

Purified water

Purified water is any water that has been mechanically filtered or processed to be cleaned for consumption. Purification methods include distillation, deionization, reverse osmosis, carbon filtration, microfiltration, ultrafiltration, ultraviolet oxidation, or electrodialysis. We tend to use the term in common conversation to mean any water that’s been made safe for human or animal consumption.

Reverse osmosis (RO)

Reverse osmosis is a purification method that pushes water through a semipermeable membrane. RO can remove many types of molecules and is commonly used both in industrial processes and bottled water facilities. However, chemicals like pesticides, herbicides, and chlorine are molecularly smaller than water and can pass freely through the filter. RO also removes naturally occurring minerals that can contribute to both health and good taste.

Tap water

Tap water is a healthier choice than soft drinks, but varies widely in taste and quality. According to the Environmental Working Group, there have been 315 pollutants found in America’s tap water since 2004, and over half of these pollutants are completely unregulated and can legally exist in any amount.

Typically, our municipal water is treated, processed and disinfected. It is usually purified with chlorine and generally has added fluoride. Look for a quality report on your local tap water

The Water Store and Wellness Center, 4910 Main Street, Suite 116  Spring Hill, TN 37174
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