A semi-permeable RO membrane that removes nearly all of the remaining impurities.A carbon filter that reduces VOCs and chlorine from the water as well as other smaller contaminants.A sediment filter that works to reduce larger particles like dirt and rust suspended in the water.The number of stages indicates how many filters and membranes the water passes through for purification.Ī standard three-stage reverse osmosis system features three types of filters: Typically, RO systems feature three-stage, four-stage or five-stage filtration. In addition to that semi-permeable membrane, Most RO systems feature other filtration stages to help further purify the water and protect the RO membrane from larger debris. The amount of flow required for your application will depend on how much purified water you need access to on a daily basis. High-flow RO units produce the most purified water per day, while low-flow systems produce a much smaller amount. The rate at which your reverse osmosis system filters water is referred to as the flow. Factors that affect the functionality of your RO filtration system include flow, number of stages and membrane types, and pump pressures. Different types of RO systems and specs are required depending on your desired application. As a basic design, all RO units purify water by passing it through a thin, semi-permeable membrane to remove suspended and dissolved impurities and pollutants.
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