Just because they are advertised as pure water filters doesn't mean that they actually provide purity. You can only find an effective pure water filter, if you know what to look for. Here's a little shopping help.
For families on a municipal water treatment system, there are a number of hazardous impurities that should be removed before drinking, cooking or showering. These include cysts, lead, chlorine and Trihalomethanes (THMs).
Many so-called pure water filters only remove chlorine and odor. Most do not remove THMs. It all depends on the technology that the water filtration manufacturer chooses to include, but a high price does not always indicate high quality.
A reverse osmosis pure water filter, for example, removes cysts, but not chlorine or THMs and they only reduce lead to the federal action level. If you are serviced by a public provider, the facility must advise you when levels exceed the federal action level.
But, in truth, no level of lead consumption is safe. You should look for a pure water filter that includes an ion exchange step to remove at least 99% of all lead traces.
Pure water filters that remove chlorine may include granular activated carbon, a carbon block or both. The dual-stage systems reduce chlorine by more than 99%. If a system only includes granular activated carbon, they can "leak" bits of the granules into your glass.
With the best dual stage systems, the last step is a carbon and multi-media block with a .5 micron channel to capture any cysts, sediments or bits of carbon. The carbon and multi-media block design will also trap THMs.
THMs or trihalomethanes are always found in public supplies when chemical disinfectants have been used to kill bacteria and control algae growth. There is a maximum action level for them, as well, but there is no consideration of how quickly the levels can rise as chlorine remains active and continues to encounter bacteria and algae in the pipes.
By the time the water gets to your home, the level could be astronomically higher than it was at the facility. Trihalomethanes are a major concern because they are toxic to the nervous system and increase a person's risk of cancer. There are thousands of new cases every year that are directly caused by THM exposure.
The Ever Pure water filter does not remove THMs. Neither does Brita or PUR. I am not sure how they can continue to call them pure water filters when they do not reduce the risk of THM exposure, but they get away with it.
You should be aware that THM exposure can occur during a shower or bath, because the compounds become vaporized and are inhaled. They can also be absorbed through the skin. So, you really need a pure water filter for the kitchen and the shower.
You can expect to pay about 5 for the best pure water filters. My favorite company offers a package deal that includes both kitchen and shower filtration for around 0. You can't find a better deal for an effective product anywhere on the market. Happy shopping!
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Don't buy just any tap water filter that you see on a shelf in a department store. You want a "real" tap water purifier and some of the most popular brands do not really purify. Here's how to tell the difference.
First of all, a company should provide product performance data. They should make it available "before" you buy, so that you know what you are getting. The problem is that most companies do not make the information readily available.
To find out what contaminants were removed by the "Clean & Pure" "maintenance-free" tap water filter, I had to call the company. After being transferred numerous times and spending what seemed like hours on hold, I was informed that the product is NOT a tap water purifier. It only reduces chlorine and odor.
Companies like this, along with PUR and Brita, use a single stage granular activated carbon step to reduce chlorine and some of the other common chemical contaminants. While chlorine removal is important, since it damages the digestive system, there are other more hazardous chemicals in publicly treated supplies.
Some of the worst are trihalomethanes or THMs. They are byproducts of chemical disinfection. They are present in every publicly treated supply. Sometimes the levels are high. Sometimes they're low. But, without a doubt, they are always there.
A tap water purifier must include a multi-media adsorptive block to adequately remove THMs. The cheap brands mentioned above do not include this step. But, you don't have to spend a fortune on reverse osmosis, either.
Reverse osmosis was the tap water filter of choice for many years. But, technology has moved on and this step is simply unnecessary for a publicly treated water supply. At one time they were recommended for cyst removal. In case you don't know, cysts are tiny parasites that are resistant to public disinfection methods. An infection can be fatal.
They can only be removed by a reverse osmosis tap water purifier or a submicron particle filter. Submicron particle filters cost a lot less and are just as effective. The best systems take that adsorptive block that I mentioned above and create a submicron sized channel, which ensures that ALL of the water passing through is cleaned of chemical contaminants, and it guarantees the removal of giardia and cryptosporidium cysts.
To remove lead and other metallic traces, a tap water filter should include an ion exchange step. This step improves the mineral content and the taste, as well as the pH level of water passing by it. All together, an effective tap water purifier should include four steps; granular carbon, a carbon and multi-media block, a submicron filter and an ion exchange step.
That might sound like a lot and you might think it would be expensive, but surprisingly, the best systems cost about a hundred dollars, if you buy them direct from the manufacturer.
Look for these steps and for certifications by Underwriter's Laboratory and the California Department of Health. That way, you'll be sure that you are buying an effective tap water filter and not just wasting your money.
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The use of bottled water around the globe has been rapidly increasing in recent years. With the belief that drinking bottled water is better for your health, many spend money on installing a 5 gallon water dispenser in their homes or offices. Before you decide whether or not you should do the same, make sure you are aware of the many factors involved in the making and use of water bottles, and the water contained.
The Pros of using bottle water dispensers are fairly obvious, but let's take a more detailed look:
You are given the choice of which water brand to use since most of them today provide the 5 gallon standard bottles and home delivery services. Freedom in placing the dispenser anywhere you want, like tables, desks, room corners, in between furniture. No dealing with problems in public water supply systems, such as rust, shear, corrosion, cracks, leaks and so on. Independent source of water in the cases when a water regime or malfunction is present in your area, such as shortage of water supply, lack of pressure or clogged main pipes. Easy to replace or upgrade a dispenser without doing tedious installation work and dealing with water supply systems, pipes, wrenches and drilling holes.
The Cons have mainly to do with the safety, health and environment considerations that come with the use of bottles:
Nearly half of the brands claiming to be selling pristine, purified, natural, healthy water sell nothing more than tap water, sometimes treated additionally, at a hundreds of times higher cost per gallon. While tap municipal tap water is regularly tested by Environmental Protection Agency and cover its standards, bottled water is not as these institutes have no authority over private water distribution. Around 90 % of the used water bottles are thrown into regular trash bins at the expense of greater costs for the environment. The material (oil derived Polyethylene Therephthalate, a.k.a. PET), used to make a water bottle, wastes up nearly 3 times more water to make than will ever go into the bottle! PET production and the truck delivery of bottled water end up in air emissions that poison the air as well as adding to the overall cost because of the fuel used.
As you can see it really is a matter of accessibility and saving time, versus environmental care and awareness. With the increasing popularity of glass-made water bottles some of the issues are being resolved. Although heavier than plastic ones, they are 100 % safe and cost much less to produce. In the end, whether or not to use a 5 gallon water dispenser is a personal choice to each one of us and something that would continue to create debates in the future.
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