At the time when RO water filtration was first converted for household use, they became an almost instant hit. Since no one knew about all the drawbacks, it was advertised as the one sure way to achieve pure water for drinking. However, the popularity of RO systems has declined considerably in the past thirty years. RO water treatment is simply not that good when compared to other purification systems on the market today. We simply cannot afford to use reverse osmosis filtration when considering the implications from an environmental as well as global stand-point.