Reverse Osmosis filter system

Many consumers are looking for effective safe solutions to give them peace of mind that their family’s drinking water supply is safe and healthy. This page answers many of the most common questions that we are asked by customers and even provides some helpful diagrams to illustrate the main parts of a Reverse Osmosis System.

What does a Reverse Osmosis Filter System Do?

Reverse Osmosis or RO for short, is a water filtration technology that uses semipermeable membranes to “block” larger particles and allow only clean water to pass through. Provided a high quality “certified for drinking water ” filter is used, Reverse Osmosis systems are among the most effective water purification technologies available on the consumer market . RO systems are both energy efficient and environmentally friendly compared to other filtration methods and bottled water alternatives.

Reverse Osmosis systems for home or office use are powered by water pressure which forces incoming “dirty” water through the membrane allowing only “purified” water to pass through to the facet and washing the concentrated “dirty” water down the drain. Given sufficient water pressure – minimum of 40 PSI – no external power supply is needed to make the RO system work.

How does Reverse Osmosis work

Semipermeable membranes used in drinking water RO systems are polymer based and consist of many very thin sheets or layers of a material that with billions of tiny holes in it. Water molecules can pass through these holes, but salts, lead molecules and thousands of other impurities and toxins cannot pass. Using the natural water pressure of your home or office’s pipes, the RO system performs a multistage filtering of incoming polluted or impure water. At each stage impurities are removed starting with sediments and larger particles, and ending with the Reverse Osmosis membrane removing the smallest impurities such as salts and viruses that other filters have not filtered out.


The RO system sends the clean water to a storage tank and flushes the impurities and pollutants in the dirty water down the drain.

Why it is called Reverse Osmosis

Osmosis is a natural process that occurs in Nature. Without Osmosis trees and other large plants would not exist. Neither would we, as Osmosis is a key means by which water is transported into and out of the cells of our bodies.

In “nature” water tends to cross a semi permeable membrane from the “clean” or less concentrated side to the “dirty” or more concentrated side as it seeks to average out the amount of solute (inorganic solids dissolved in the water), or “pollutant” . Since the larger molecules cannot cross the membrane but water can, it seeks to achieve a balance where both sides have the same concentration of water and solute.

In reverse osmosis water is forced from the “dirty” or high concentration side to the “clean” or low concentration side by use of pressure. This forces water to flow across the membrane against its natural direction or in “reverse” and allows us to create clean highly drinkable water from polluted or even toxic water.

Effectiveness of Reverse Osmosis