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How Does a Pitcher Water Filter Work?

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The process of water filtration is not as hard as many people tend to believe. It involves the passing of water -- dirty water -- through porous materials at considerably low speeds. This causes the material to retain the solid particles that are in the water while allowing the clean water to pass through.

Slow-sand filtration is among the oldest water filtration procedures and though it served the purpose at the time, it had some challenges. The system was only able to remove solid particles which meant that the soluble impurities still remained in the water.

In efforts to improve the quality of water from then existing filtration systems, the carbon element was introduced to the system. Carbon was compressed to form a carbon filter. This filter is now commonly known as a multimedia filter. This is because it has other elements other than carbon which makes it more efficient in water filtration. Different companies have modified this system to fit into their devices, including their pitcher water filter products.

The carbon pitcher water filter works in a similar way as the slow-sand filter. The only difference is in the filtration efficiency. The porous carbon element blocks unwanted materials with the multimedia filter aiding in the filtration process. Carbon has a very unique role in the filtration process because it is a catalyst for a chemical process that takes place during filtration. The atomic charge in carbon causes the contaminant particles in water to detach from the water and attach to carbon. This means that even the soluble contaminants will be eliminated from water.

One of the chemicals that multimedia water filters have successfully removed from water is chlorine. This is a chemical that is used by water treatment companies to kill pathogens in water. But chlorine often ends up being harmful to the human body especially if the amount used exceeds the recommended quantity. Chlorine also exists naturally in water which means that it can be found even in river water. Furthermore, chlorine is known to be very stubborn as it cannot be removed using the granular filtration process. The carbon in pitcher water filters easily gets rid of chlorine. Chlorine is automatically attracted to the carbon atoms and rarely will any of these chlorine particles go past the water filter.

More advanced water filters allow water to be filtered at different stages where different impurities are sieved out. This is achieved through the use of highly efficient multimedia filter systems which are aimed at giving the consumer 99% pure water.

Pitcher Water Filter Brands