What must be done to the manifold during problems arising from cargo discharge?

Closing the manifold immediately after shutting down the cargo is a critical safety and operational procedure. When problems arise during cargo discharge, such as a leak or other hazardous situation, rapid action is required to minimize risk and contain any potential spillage. By shutting down the cargo flow and closing the manifold promptly, the crew can help prevent further release of cargo and manage the situation effectively.

This procedure is especially important in maintaining compliance with safety protocols and preventing environmental contamination. Closing the manifold creates a secure barrier that isolates the cargo from the discharge piping and minimizes the chance of cargo release in the event of a problem.

Keeping the manifold open or leaving it in standby could lead to uncontrolled flow or difficulties in managing the situation. It is also crucial to communicate with the captain about safety-related actions, but the immediate priority should be to close the manifold to mitigate risks.