Reverse Osmosis is a simple and effective way to rid your water of undesirable substances. Processed well water enters a sediment prefilter that removes sediment and particles, and then flows into a chamber with a reverse osmosis membrane. The water is then forced under high pressure through a semi-permeable membrane effectively removing dissolved solids and contaminants. Prior to the bottle being filled, the RO water passes through ozonation which kills all bacteria and viruses, producing a pure and healthy drinking water with a great taste.