Removing the Mixture

• close valve 13A, open valves 9 and 3
• set the mixing chamber heater and the still heater to 1 mW
• if the system has to be warmed up to romm temperature, the VTI set temperature can be set to 10 K, as soon as the dump pressure is beyond 90 % of its original value (630 mbar)
• wait until the pressure on P1 drops below 0.01 mbar, then close valves 12, 13, 3 and 9.