Comment metalica SNF 2006-11-13 20:03:54: Roughing Valve Left Open

sjo at sjo at
Mon Nov 13 20:03:54 PST 2006

When I started my  process at 8pm, I found that the roughing valve had been left open. The cold trap was empty, but still covered in ice, so I'm hoping not too much oil backflowed into the chamber. 

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