What is reverse osmosis?
So you want to know what is reverse osmosis. Reverse osmosis as it pertains to water filtration is a system that forces water through membranes to remove contaminates. The membranes used for reverse osmosis have a dense barrier layer in the polymer matrix where most separation occurs. In most cases the membrane is designed to allow only water to pass through this dense layer while preventing the passage of solutes (such as salt ions). This kind of system tends to give very pure water. I noticed a substantial difference in the taste of my water after installing this kind of system in my home, and tests show the after filter water is extremely contaminant free.