Reverse Osmosis systems use multiple levels of filtration. As the water passes through, more contaminants are removed. Below, we’ll discuss the details of each level.
Pre-filtration is the removal of large contaminants such as dirt, sand, or sediment. These contaminants are caught and disposed of by the filters, which prepare the water for more intense filtration.
Next is membrane filtration. Semipermeable membranes are used to filter water. They are the heart of any reverse-osmosis system. The membrane can remove a variety of contaminants, including chemicals, minerals, bacteria, and many other substances. Arsenic and lead, iron, as well as coliform bacteria are just a few of the contaminants it removes.
Although this membrane can’t remove all contaminants completely, it is very close. It leaves behind very few contaminants in the water. It has virtually no effect on water quality.
The final stage is called the post-filtration stage. The system polishes water that has been filtered. It attempts to eliminate any straggling contaminants. It is not 100% efficient, but it is very close.
After the water has passed this level of filtration, it is ready to be consumed by the storage tank.
This post was written by a water treatment expert at Paragon Water Systems. Paragon Water Systems is a water filter supplier. We know that the best product comes from the best materials. We manufacture home water solutions such as reverse osmosis systems, under sink water filtration systems, showerhead filtration systems, carbon cartridges, and a wide variety of other products. Our focus is to provide Americans with safe and clean water throughout the home.