Now, it would appear relatively simple to do this, getting the
pressure set at
19. However, there's a rather influential caveat here. There are
three tiers of
valves to work with and the elevator also uses hot air to operate.
This decreases
your accumulated pressure every time you move it.

When you see hot air/steam the valve is open and you lose
pressure. There's a
straightforward way to get the valve puzzle solved. And that's
simply to greatly
overbuild the pressure. Use the lever on the left (pulled to the
right) to raise
the elevator up two more levels to the top tier. Establish the
pressure at
halfway into the red zone on the gauge! Then, work your way back
down to the
middle and bottom level as follows:

Starting on the bottom level close all three working valves.
2nd level - close all valves.
Top level - close the right valve only.
2nd level - open the two left valves.
Bottom level - open all three operable valves
The long side of the needle on the gauge should be just a hair to
the right of
the 19 mark. Good. Close enough!
Swing around and go left forward once. Swing to the right to see a
red handled
... Далее >>