How A Reverse Osmosis Membrane Works.

Let’s get technical and cut open an RO membrane and see how it works.  The common RO membrane is called a Thin Film Composite or TFC. Several manufacturers make them including KOCH, Dow, DeSal and others. Save for some personalized recipes, these different brands are pretty much identical to each other. Forget for now the questions about why this process is called reverse osmosis and let’s just focus on how…