You are unable to pump out the aft starboard engine room bilge well that is fouled, with one foot of water over the top of the bilge well, what action should be carried out?

Correct Answer: Option C — Remove the bilge manifold valve and attempt to back flush the line.

Back-flushing the bilge manifold is the most effective method to clear a suction line blockage when the well is submerged. By reversing flow, you can dislodge debris from the strainer or piping, restoring suction capability without risking personnel in a confined, flooded space.