Show Reverse Osmosis Purifies Water oJ A Anew d- d of i correcting g hardness and other water problems that may revolutionize revolution revolution- ize water treatment techniques techniques techniques ques has been announced ACCORDING to the Water Conditioning Foundation the new technique is a reverse osmosis osmosis osmosis os os- os- os method in which water molecules are allowed to pass through a semi permeable membrane while dissolved minerals organic material materIa material and suspended matter are left behind The system is completely automatic The term reverse osmosis is derived from the process b by which plants obtain their water In osmosis there is a flow from the more dilute to the more concentrated fluid Reverse osmosis is just the op op- op- op Pressure is applied to the more concentrated fluid forcing the water through the membrane Impurities cannot penetrate the membrane and remain behind ACCORDING to the Foundation Foundation Foundation tion reverse osmosis is regarded regarded regarded re re- re- re as especially effective in treating water waler that has large amounts of dissolved minerals This should be good goodnews goodnews goodnews news for Cor almost every homemaker homemaker homemaker home- home maker since about 85 of the country has water that would benefit from treatment In addition to the usual problems problems problems lems due to iron manganese sulphur etc much raw water is also brackish or sa sa- sa- sa line These terms are arc used to describe water that is salty but not as salty as the oceans According to the American Water Works Association one out of five municipal water systems have more dissolved solids than is recommended for drinking water by the U.S. U.S. U.S. U. U S. S Public Health Service AS EVERY horn homemaker e m a k e r knows water that's hard or is otherwise mineralized creates creates creates cre cre- ates many problems Besides making housecleaning dishwashing dishwashing dishwashing dish dish- washing and laundering harder hard hard- er it also affects the taste of oC coffee tea and foods cooked in it It shortens the useful life liCe of or clothing water-using water appliances appliances ances antes and pipe too The reverse osmosis method meth meth- od the Foundation points out will supply high quality water at reasonable cost Equipment for both home and industrial use is now available |