Separation system for a fuel cell system

A separation system for a fuel cell system, the separation system comprising:

• a first container which is open to a top for separating a liquid from a two-phase mixture, the first container comprising an inlet via which the two-phase mixture is suppliable, a first upper outlet via which a gas is dischargeable, a second lower outlet via which a liquid is dischargeable, and a first container bottom;
• a second container which is open at a top, the second container comprising an inlet, a drain which comprises an outlet opening, and a second container bottom;
• a measuring tube which fluidically connects the second lower outlet of the first container to the inlet into the second container so that the first container and the second container are communicating containers in which a liquid level is on an equipotential line in both the first container and in the second container;
• and
• a flow meter which is configured to measure a flow in the measuring tube between the first container and the second container geodetically below the outlet opening,
• wherein,
• the outlet opening of the drain of the second container is arranged geodetically above the first container bottom and above the second container bottom.