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Water Filters - Part I
By Michael Russell
Water filters. Pretty simple concept, right? Turn on your tap, let the dirty water run through the filter and into your glass goes some nice clean contaminant free water. And in theory it is a simple process. Unfortunately picking a water filter is not so simple as their are many different ways to filter your water and many different types of filters to filter your water with. So which ones are best? The answer to that question is probably eternally elusive but at least in this article we're going to review some of the different types of filters that there are so you can make an informed decision.
Probably the most common water filters are charcoal. The charcoal is actually gotten from coconut husk. The charcoal absorbs the impurities out of the water. Charcoal water filters make up about 95% of all the water filters in use. The reason is because they are simple to install, relatively cheap and remove most of the toxins found in the water. An average charcoal filter will last between 6 and 9 months before it has to be replaced. Some charcoal filters are enhanced by the use of silver which gives you extra antibacterial protection. Charcoal filters are probably the best buy for the money.
Not quite as common are what are called reverse osmosis water filters. These filters use a fine membrane to filter the water through an osmotic process. These filters, unlike charcoal filters, take everything out of the water, leaving them totally pure. These filters are installed under your sink and require a serviceman to come out every few months to install a new membrane. There is some debate as to how beneficial these filters really are since they also take all the good minerals out of the water as well.
Another type of water filter is the distiller water filter. These filters use electricity to heat the water to its boiling point. The impurities are left in the boiling container and then the purified condensed water drains back into a clean container. These filters require an enormous amount of power and don't give an immediate supply because the boiling process must be completed first. There are reports that claim that distilled water is not good to drink long term because it actually takes nutrients from your body because of the unnaturalness of the water.
Then there are ionized water filters. Ionized water is water that has been electronically altered by being run over by positive and negative electrodes. The water then becomes ionized by separating the water and the minerals in it into alkaline and acidic water. You end up with 70% alkaline water and 30% acidic water. Both waters have excellent properties. The alkaline ionized water is used for drinking and is a great antitoxin for the body. Acidic ionized water is used primarily for bathing and is supposed to be very good for killing bacteria.
In our next article we'll go over some additional types of water filter and treatment systems.
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Michael Russell
Your Independent guide to Water Filters
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