Dear Attila,

second possibility is the O-ring joint. Use a touch of vacuum grease (not
>Apiezon!) to help the gasket be deformed smoothly. This helped me when I
>used such joints.

What's the matter with Apiezon grease? I don't use it for carbonate work,
but both N and T are widely used in the lab ...

Clemente

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Dr. Clemente Recio
Stable Isotope Laboratory
Fac. de Ciencias
Univ. de Salamanca
E 37008 - Salamanca
      Spain

Phone: (+34) 23 29 44 00 Ext. 1540
Fax:   (+34) 23 29 45 14
E-mail: [log in to unmask]
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