681. While at operating draft, the DEEP DRILLER suffers flooding in the port pump room. Both port bilge pumps are inadequate to dewater the pump room. You may supplement the bilge pumps with the __________.

To address flooding in the port pump room, the port drill water pump can supplement the inadequate port bilge pumps because it is specifically designed as an emergency bilge pump for that space, unlike the other options which are restricted to ballast transfer, essential services, or are not piped to the bilge well.