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Pump Mixture to Dump

  1. (Not necessary) Close all valves on IGH.
  2. Open V5 and V9.
  3. Open the valve(s) to the cold trap in case there is mixture left in there from being circulated through them (V12A/B and speedivalve on cold trap 1).
  4. Open V6 all the way. This will take 3-4 minutes.
  5. When P1<0.014 mbar, mixture has been pumped sufficiently to dump. The reading on G2 should be ~ 800 mbar, and G1 should be < 1 mbar.
  6. To close off the dump, close V5 and V9.