There are multiple filtration medias inside of a reverse osmosis system deal with kinds of impurities, contaminants and hazardous substances in home drinking water source. Reverse osmosis system makes itself well-recognized by using multi filter cartridges against different pollutants exist in water.
First-step: Polypropylene Sediment Filter Cartridge
PP sediment filter is the 1-stage cartridge of reverse osmosis system made of quality polypropylene material. It effectively intercepts most particulate matters includes rust, sand, silt and gravels. It has a gradual filtration micron ratings which means the superficial parts with higher microns, the deeper parts with lower microns. This point lets pp sediment filter significantly filters out impurities with different sizes. In a reverse osmosis system, pp sediment filters need to be maintained and replaced regularly so that to keep a stable pure water flow and prolong the lifespan of second-stage and third-stage carbon filter cartridges.
Second-step: Granular Carbon Water Filter
Most reverse osmosis systems adopts GAC granular carbon filter as the 2-stage cartridge. Carbon water filter has a powerful adsorption effect which helps users get rid of chlorine, bad taste and smells. Manufacturer chose premium activated carbon as the raw materials. High-standard extrusion technology brings an well-performed filtration effect of both adsorption and filtration. It also does great work on filtration of organisms and unusual pigments in water.
Third-step: Carbon Block Filter Cartridge
Here comes a relatively precise filter cartridge, carbon block filter cartridge which has an excellent functions and effectiveness among a reverse osmosis water filter system. After sintering, the carbon block is very dense, that helps to get ride of bad smells & odors, free Chlorine, VOCs and more contaminants on a high filtration efficiency.
Fourth-step: Reverse Osmosis Membrane Filter
Quality of reverse osmosis membrane filter is the core part of the system also an important factor to make a good reverse osmosis system. It works on contaminants that the previous 3 filters can not remove like tiny organisms, heavy metal ions, harmful bacteria and hazardous viruses. After this filtration phase, the generated water contain pure water molecules only.
Fifth-step: Post Activated Carbon Filter
The water with pure water-molecules tastes a little astringent due to unbalanced PH value. That’s why reverse osmosis systems usually have a post activated carbon filter cartridge installed after reverse osmosis filter cartridges. It is mainly used to adjust and improve pure water taste.
Through multiple filter cartridges help reverse osmosis system effectively reduces most contaminants in water and then reach a better purification effect. Facing with severe environment pollution day by day, water filter manufacturers are all working on new filtration technology to provide better drinking water for thousands of families.
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