Clean, high quality drinking water is mandated for communities in most countries by the government. Standards have been established for a single home on a well to the largest cities which produce water from wells, surface sources or oceans. In certain instances, such as where nitrates or lead create issues a single well or for brackish water along coastal communities, reverse osmosis (RO) is required to produce an acceptable quality of potable water. A critical part of these systems is the protection of the reverse
osmosis membrane. The goal of the pre-RO filter is to reduce membrane fouling by provide a silt density index value (SDI) below four. By doing so, the life of the membrane is increased, chemical cleaning is reduced, which equates to improved operational efficiencies
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