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I am using the stainless steel diaphragm valve on my Delta-S when I opened the valve this morning the vacuum higher than normal 7.1E-6 instead of 2.3E-6. Is there an internal part that can be replaced or do I need a new valve, this one is 5 years old.




Patrick D. Anderson

Analytical Chemist

Great Lakes WATER Institute

University of Wisconsin- Milwaukee

600 E. Greenfield Ave.

Milwaukee, WI 53204



            “Golf is a game whose aim is to hit a very small ball into a even smaller hole, with weapons singularly ill-designed for the purpose.”

            Winston Churchill