Water Filtration

Reverse osmosis (RO) water treatment has become a frequently used method for the treatment of household drinking and cooking water.  The overall effectiveness of a reverse osmosis water filtration system depends on the initial levels of contamination in existing household water supply, as well as available water pressure.  RO systems are not generally appropriate for treating a water supply contaminated by coliform bacteria, or a water supply that serves more than one household.

Reverse osmosis systems are usually used to reduce the levels of total dissolved solids.  RO treatment may also be used to reduce naturally occurring substances in a water supply that result in foul smells, tastes, or colors, as well as substances have compromised the water supply and resulted in adverse health effects.  RO units that include a carbon filter may also have the capability to reduce soluble organic compounds such as pesticides, dioxins, and some volatile organic compounds such as chloroform and petrochemicals.  In Minnesota and the Dakotas, the principal use for an RO system is to reduce the high levels of nitrate, sulfate, sodium and total dissolved solids present in the water supply.

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