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                                                                   EXHIBIT 23(1)
 
                         INDEPENDENT AUDITORS' CONSENT
 
     We consent to the incorporation by reference in this Registration Statement
of Osmonics, Inc. on Form S-3 of our report dated February 23, 1996 relating to
the financial statements of Desalination Systems, Inc. for the year ended
December 31, 1995, appearing in the Current Report on Form 8-K of Osmonics, Inc.
filed on August 8, 1996 and to the reference to us under the heading "Experts"
in the Prospectus, which is part of this Registration Statement.
 
DELOITTE & TOUCHE LLP
 
San Diego, California
October 8, 1996