You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take?

Correct Answer: Option D — Reduce the pumping rate.

Reducing the pumping rate decreases the volumetric displacement of liquid from the tank, thereby slowing the rate of pressure drop. This allows the inert gas system to maintain the required positive pressure within the tank, preventing the ingress of atmospheric air and maintaining a non-flammable environment per 46 CFR.