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Choosing and buying a countertop water filter

by Γιάννης Μπουζάνας
Countertop water filters

Countertop water filters are placed on your kitchen counter and are easily connected to your faucet with a diverter. With a switch of this diverter you can select unfiltered water (eg to wash your dishes) or filtered water (to drink, cook, wash vegetables etc). You can also fill empty bottles with clean water. 

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Countertop water filters

They are very practical as the filter's tap can turn to any direction and the tube can be cut to suit your needs. There are various types and models so we are certain you will find one that suits you best. They connect to M22 and M24 type faucets, which is pretty much all the faucets except "shower" type faucets.

How do they work?

Inside the housing, there are special activated carbon filters, ie a thin, odorless, tasteless and non-toxic black powder with extremely porous surface produced by cracking of organic materials of plant origin. It is essentially a charcoal that has been reheated and oxidized to activate and increase the size of its pores. Activated carbon is created from bamboo, olive stone, sawdust as well as from other sources such as peat, charcoal, etc. However, the best activated carbon comes from the coconut shell. It is the most ecological and environmentally friendly and is used in water filters of the highest quality. Coconuts (through a special treatment) are converted into activated carbon that has the ability to bind various substances that come in contact with it, in liquid and gaseous form, and in quantities many times its weight. To understand its excellent absorbency, it is enough to consider that a tablespoon of activated carbon has the same area as a soccer field!

How does activated carbon work?

As water tries to pass through very small holes in the activated carbon filter, its harmful elements are stored in the carbon micropores and so the water comes out filtered. Activated carbon filters completely remove the unpleasant taste and smell of water and mainly reduce chlorine and its by-products such as chloroform, suspended particles, sand, rust, mud, soil, salts and many other harmful substances. . However, depending on the compression and quality of the carbon, activated carbon water filters can reduce a number of other harmful substances. If activated carbon is combined with ceramic material, then it acquires bacteriostatic properties while its combination with zeolite allows it to effectively reduce heavy metals, volatile organic compounds, industrial residues, pesticides, pesticides, etc.

Which countertop water filter to choose?

Generally you should be aware that water filters should not be installed for water that is microbiologically unsafe such as non-chlorinated well water or well water. So if your tap water is drinkable, depending on the problems of your area network, you can choose over-the-counter water filters with a single or double filter. In areas with "difficult" water, choose a double filter to ensure crystal clear water for you and your family. In any case, before deciding which filter to buy, contact Primato experts to discuss your needs and suggest the right one.


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George Margiolos

George Margiolos was born in Thessaloniki and has graduated from the Department of Marketing of the Alexandreio Technological Educational Institute of Thessaloniki. He is fluent in English and (not so fluent) in German.

Ηe has been Project Manager at Avery Dennison - Fastener Division in the UK. There, his main project was to redesign the company's products into new applications so as to become more environmentally friendly. In combination with the fact that in the UK people are more familiar with water filters, he has developed a love for environmentally friendly water filters, which reduce the use of plastic bottles and improving people's quality of life.

Since 2008, he has published over 300 unique educational and informative articles on water filters and new water treatment technologies.

Occasionally, universities and doctoral students request to use George Margiolos' articles in their research because of their quality and uniqueness.