A Jewell water filter was a system of sand filters for filtering and treating water for drinking purposes that made use of gravity to allow water to percolate through a column of sand inside cylindrical cisterns that was widely used in the early twentieth century. They are named after Omar Hestrian Jewell (1 July 1842 - 19 June 1931) established Jewell Pure Water Company in Chicago in 1890 and managed later by two of his sons.
A Jewell water filter was a system of sand filters for filtering and treating water for drinking purposes that made use of gravity to allow water to percolate through a column of sand inside cylindrical cisterns that was widely used in the early twentieth century. They are named after Omar Hestrian Jewell (1 July 1842 - 19 June 1931) established Jewell Pure Water Company in Chicago in 1890 and managed later by two of his sons.
Source: Wikipedia "Jewell water filter" · CC BY-SA 4.0
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