| http://www.w3.org/ns/prov#value | - Turning now to the drawings wherein like elements are identified with like numerals throughout the three figures, the apparatus of this invention is identified by the number 1 and shown in FIG. 1 to comprise a thick-walled, metal, heavily weighted pump tube 3, made of steel or other strong material terminated by a closed top end 5 and an open bottom end 7.
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