868 (20) adopted November 27, 1997. One is to empty a tank until suction is lost and pump in clean ballast water. The other is "Overflow Through Method" by pumping ballast water into the tank and ...
The reason submarines are able to do this is thanks to some very important components known as the ballast and trim tanks.
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback