| Lines 27-30 were replaced by lines 27-29 |
| - * Open a little valve 12A (4.0 % to start). |
| - * While the pressure reading on G1 should always be below about 400 mbar, |
| - Valve 12A can be opened gradually, and opened completely, when the |
| - reading on G2 drops below 350 mbar. |
| + * Open V12A a little (4 %) to allow the mixture pass the trap slowly. |
| + * When the pressure reading on G1 stabilizes or decreases, open valve 12A |
| + completely. |
| Lines 42-43 were replaced by line 41 |
| - and close valve 14 again, but make sure that the pressure on G1 does |
| - not increase above 350 mbar. |
| + and close valve 14 again. Do that several times. |
| Line 45 was replaced by line 43 |
| - raise above 50 mbar. Leave the valve open until the P1 drops below 1. |
| + raise above 50 mbar. Leave the valve open until P1 drops below 1. |
LIN