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Water Treatment Alternatives

There is a wealth of water treatment alternatives currently on the market. The proponents of these various water treatment alternatives will often make several promises about their product, and it may become difficult to assess, even for the most conscientious of consumers, the appropriate water treatment product for one’s needs. To aid you in your choice of water treatment, we have provided a brief explanation of three of the most common water treatment alternatives. In the following paragraphs, you can read about the processes and best uses of reverse osmosis, distillation, and filtration.

Reverse Osmosis
Reverse osmosis is a process of water treatment that has risen in popularity since the 1970s. Primarily used as a method of desalinating seawater, the reverse osmosis process involves a semi-permeable membrane—usually constructed from a polyamide-based material—and a source of pressure. Water is forced to move against its natural flow pattern (osmosis) from a solution of high saline concentration to a solution of low saline concentration through the semi-permeable membrane.

The object of reverse osmosis is to block the passage of salt particles through the membrane, resulting in a solution of purified water on one side of the membrane and a solution of highly concentrated, salt water on the other side.

In recent years, reverse osmosis has been adapted to treat freshwater for drinking water purposes. While reverse osmosis is highly effective at desalinating seawater, there are some aspects to the process that make it undesirable for treating drinking water. First of all, the semi-permeable membrane is only designed to remove particles from water that are physically larger than water molecules. The membrane will remove mineral components and most heavy metals from drinking water, but it will not remove chlorine and other synthetic chemicals. Such chemicals are physically smaller than water molecules and can pass easily through the membrane. Besides this drawback to reverse osmosis, the process is rather wasteful and costly. Generally, three gallons of water are wasted for every one gallon of purified water produced.

Distillation
The distillation process--used primarily as a means of producing alcoholic beverages--has existed for millennia. Distillation reached its peak of popularity in the 1970s, but due to its costliness and general inefficiency as a water treatment process, it has now been largely relegated to the purposes of scientific laboratories and printing shops. Still, distillation continues to be used--in small measure--as a method of drinking water purification and merits some discussion.

In the distillation process, contaminated water is heated until it reaches its boiling point. Once the water has begun to evaporate, the heat is kept at a constant to ensure that contaminants with a higher boiling point than water do not also evaporate. The steam from the water is led through a series of tubes into a separate container where it is allowed to condense into the liquid form.

The object of distillation is to produce pure water in the second container while retaining any contaminants in the first container.

Distillation, because of its constant heat source, will remove any contaminants with a higher boiling point than water. Such contaminants include minerals, heavy metals, and many chemicals from pesticide runoff. They do not include chlorine and VOCs, which have a lower boiling point than water. Consequently, distillation is not highly effective at providing safe drinking water. Like reverse osmosis, it is also incredibly inefficient, wasting nearly 80% of the water it uses.

Filtration
Filtration has emerged in the last two decades as the forerunner of water treatment technology. Its innovative process is the only purification technique than can effectively remove chlorine—the primary contaminant of municipally treated water.

The filtration process utilizes a filter media through which water passes. Such filter media range from sand for older filters and solid block carbon or carbon media mixtures for newer filters. The filtration process generally involves several stages, through which contaminants are removed or reduced in order of importance. In the first stage of filtration, the more concentrated chemicals, like chlorine and VOCs, are significantly reduced. This preliminary reduction allows the remaining stages of filtration to focus on contaminants like pesticides and tiny microbes that are more difficult to filter. The subsequent stages of filtration focus on the reduction of lead and chemicals from pesticide runoff. As the water passes through the stages of filtration, contaminants are both physically and chemically blocked from passage through the filter media.

Contaminants that are physically larger than the granules of the media will be blocked from passage while other undesirable elements of drinking water (such as chlorine and VOCs) are encouraged to break their chemical bond with the water molecules and attach to the filter media.

One of the primary reasons why filtration has become the forerunning method of water treatment in recent years is its use of both chemical and physical processes to block contaminant passage. Solid block carbon and multimedia filters are not merely the only water treatment products that can remove chlorine and reduce VOCs in drinking water; they are also capable of retaining healthy, pH-balancing minerals in drinking water. The adsorptive process of such filters attracts chlorine and VOCs to the filter media while allowing mineral sediments to pass through the filter.


What about Bottled Water? Read Bottled Water: Is it Hip or Hype? to learn some little-known facts about bottled water

Bottled Water: Is it Hip or Hype?

The past two or three decades have witnessed an increased interest in health and physical fitness. Across the world (but most especially in the United States), diets and miracle drugs have come and gone. Solutions to health problems like obesity and illness have ranged from simple homespun treatments to modern pharmaceutical cures.

Throughout the rise and fall of these treatments, doctors and other health officials have sworn to the undeniable health benefits of drinking an adequate amount of water each day. Water has been proven to aid in weight loss and general overall health. Taking this truth to heart, individuals across the world have embraced the healing powers of water. To accompany this large-scale recognition of the importance of water in a healthy diet, several drinking water options have quickly risen to the forefront of the market. Included among these drinking water options is bottled water.

Bottled water has been supposed to be the healthiest drinking water option currently available, and, in most cases, it is priced to match this reputation. Yet, is bottled water all that it is supposed to be? Is it worth the average price of more than $1 a bottle that most people pay? This article intends to answer these questions by exposing some hidden truths about bottled water and the water industry.

Is Bottled Water Better than Tap Water?

In recent decades, water consumers have turned en masse to the bottled water industry. In many ways, this change in preference is due to an increased wariness about the quality of tap water. While, 30 years ago, most people would have received the majority of their water intake from the tap each day, such water consumers now overwhelmingly indulge in bottled water. Public health scares like the 1993 cryptosporidium outbreak in Milwaukee, which infected more than 400,000 people, have only intensified this newfound appreciation for bottled water.

However, bottled water may not be the alleged magic cure-all to the problem of tap water impurity. While bottled water companies may market their particular brand of water as “pure, spring water” or “pure, glacial water,” such water is often little more than reconstituted tap water. In a 1999 study conducted by the National Resources Defense Council (NRDC), researchers found, in a test of 1,000 samples of 103 bottled water brands, that:

"An estimated 25% or more of bottled water is really just tap water in a bottle—sometimes further treated, sometimes not."

While this reconstituted tap water may taste slightly better than the original tap water, it hardly warrants the almost 1,000% price mark-up. Bottled water, in fact, differs very little in taste and smell from tap water.

In one publicized taste test in New York City, conducted by Showtime television, researchers found that 75% of participants actually preferred the taste of tap water to bottled water.

Although taste is, of course, extremely subjective, bottled water seems to hold little over tap water. It is often no purer or cleaner than tap water, and, depending upon whom one asks, it may not even taste better than tap water.

Bottled Water Safety Codes and Regulations

Bottled water, rather than being roughly equal or perhaps slightly superior in quality to tap water, is, in many cases, actually of lower quality than tap water. Because of differing regulations and requirements for the bottled water industry and municipal water treatment plants, bottled water is under far laxer safety codes and regulations. This difference in safety codes often results in a lower quality of water filling the plastic bottles of bottled water companies.

Because bottled water is ruled a food, it is under the administration of the FDA, as opposed to the EPA, which regulates the production and quality of tap water.

While the EPA requires municipal water factories to inspect their product for microbiological contaminants several times a day, the FDA mandates only weekly inspections for these harmful contaminants in bottled water.

Certain loopholes in FDA law also allow water bottled and sold within the same state to pass through little or no inspection.

Given this knowledge, it is hardly surprising that the 1999 NRDC study found that, of the 103 bottled water companies inspected, 18 brands contained "more bacteria than allowed under microbiological-purity guidelines."

In addition to this alarming statistic, several samples were found to contain the harmful contaminant phthalate, a chemical that seeps into bottled water from the plastic in its container. Bottled water companies, under FDA regulations, are also not required to test for the presence of cryptosporidium. Clearly, the lax regulations and standards for bottled water companies often result in a lower quality of water than one would typically receive from the tap.

Why Filtered Water is the Best Choice

Evidently, bottled water is not the “pure, spring water” that it is purported to be. In fact, it is often less healthy and lower in quality than tap water. If the choice lay solely between these two alternatives of drinking water, tap water would likely be the best option, for both economy and healthfulness. Yet, the fears and concerns that initiated the movement for a cleaner, healthier water supply have certainly not dissipated. Tap water is not without its faults and it does not deserve the title of the safest, cleanest drinking water alternative.

In recent years, due to new innovations in filtration technology, a simple water filter has become the best method of obtaining pure (and economical) drinking water.

When compared to other purification alternatives, water filters remove or reduce the most contaminants, and, unlike municipal water treatment plants and bottled water companies, water filters reduce dangerous protozoa like cryptosporidium from drinking water. Water filters provide a safe source of pure drinking water that costs much less per gallon than bottled water. Also, because water filters require no more energy than is already needed to propel water through a home’s plumbing system, they are far more economical than other water treatment options. Clearly, when faced with the problems of both bottled and tap water, filtered water remains the best choice for clean, great tasting drinking water.


References

Golub, Catherine. (2001). Liquid assets: Is bottled water really better than what’s on tap? Environmental Nutrition, 24 (9).

Potera, Carol. (2002). The price of bottled water. Environmental Health Perspectives, 110 (2).

Shermer, Michael. (2003). Bottled twaddle. Scientific American, 289 (1).

Aquasana Water Filter Systems

Aquasana Water Filter System

Aquasana has been in the market for over fifteen years now, and is continuing to excel in providing its consumers with the best line of water filtration products.  Unlike other companies whose products meet only the minimum standards, Aquasana produces quality products that are over and above the standards required by the industry and the government.

Aquasana Water Filter System has been highly rated by Consumers Digest for having excellent products. Said products have been proven to eliminate dangerous and toxic chemicals that are commonly found in tap water. With the advent of Aquasana Water filters, families are now safe to use and drink water. In addition, using them is the most economical and effective way of obtaining high quality water to keep our loved ones safe and secured. Having Aquana’s home water filter is a great investment that will truly benefit the whole family.  Aside from being convenient, it is surely affordable that a gallon will only cost you less than ten cents.

And to make it more convenient for their consumers, Aquasana has created various products that are surely a best buy. One of which is the countertop filtration unit. This product can be conveniently placed under the counter anytime and is very easy to install on kitchen faucets. Water from our faucets contains harmful toxins that can be detrimental to our health. By having a countertop filtration unit, water from our faucets is now free from toxic substances.

The rhino full home system is another great product of Aquasana that has shown amazing results to the consumers. The whole house water filter has been certified by UL Certified Performance and has passed their high quality and strictest standards. This product can be very beneficial to the family because it ensures that water in each outlet of your home is clean and safe.

Another best seller is Aquasana’s shower filter. It has given its consumers various benefits that can be great for the skin and hair. Shower filter has two stages. During the first stage, the filter balances pH and gets rid of chlorine, which is one of the major components of water. The second stage eliminates VOCs and THMs. These are chemicals that are known to bring about harmful effects to our health. By removing these substances, taking a shower will surely be healthy and refreshing.

For sporty people or for those who are always on the go, a filter bottle is definitely a must-have. While having some exercise or while playing your favorite sport, nothing can quench your thirst except a refreshing and clean water.

Aquasana’s sport bottle filter removes the chemicals that are usually found in water, hence you can be certain that your body consumes water that is free from lead and toxins. They are extra handy that you can easily carry them, not only when doing your sport but also when going to work or when having some fun travel with your whole family.

With the alarming health risks that are brought about by the harmful chemicals found in our water, it would definitely be best use to Aquasana water filter products because they are known to be truly safe and effective. Through this, we can be sure that our family is secured by drinking clean, healthy, and great tasting water.

 

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Aquasana and Grander

Aquasana and Grander

Price $177.99
Sale Price $165.99