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→Pre-Filtration
To prevent clogging the membranes, a pre-filtration system can remove particles of sand and organic matter down to 1 micron in size. Install a back-washed sand filter at the inlet. Use a series of filters (e.g., 50-25-5-1 micron) to remove other particles. If you put the finer filter first, it will clog immediately. Install an oil-water separator to remove oil. An absorption/reactive carbon filter will remove taste, odour, chlorine and organic chemicals.
== Post-Filtration ==
A second carbon filter can capture chemicals not removed by the reverse osmosis membrane. An ultraviolet lamp can sterilize any microbes that may escape filtering by the reverse osmosis membrane.
== Right Sizing the Capacity ==