We went through another watertight door and out onto a catwalk.
They would have to pass through a watertight door to get to the drilling floor.
A moment later, one of the watertight doors above them came open.
They left the watertight door there open, then went forward to the missile room.
The watertight door between control and the next space had been left open.
They hoped to have enough time, after the water had entered, to close the watertight door before the gas could reach a dangerous level.
I know, but they can secure the watertight door and buy us some time.
The bottom most was the smallest, sealed with a single watertight door.
I question very much whether they would even have had time to close watertight doors.
There was a watertight door at either end of the tube.