When I arrived at the ship this past Saturday, I noticed the she was listing to starboard a little bit more than usual. Most people passing by probably wouldn’t even notice the difference.
A check of the laser set-up we are using as a clinometer on board the ship confirmed the increase. (She was steady at 1.2° to starboard for a long time, then recently up to 1.8°.)
I also measured the tank ullages, which showed changes in the ballast water levels in some of the tanks.
I made a phone call to our naval architect, who said it was time to do some pumping.
Uh oh. My next call was to a friend to provide help and moral support.
While I had managed the pumping system project, helped put it together, and observed other people run it, I had never started it up myself.
“It’s not rocket science,” said our naval architect.
You know what? He was right.
It was quite satisfying to see something I worked hard on, functioning well.
We transferred ballast water from starboard tank #4 to port tank #2.
Ballast water in starboard tank #4:
While we were waiting, we constructed a tool to help (short people like me) open and close the overhead discharge line valves.
It took us just over an hour to get her back to 1.0°. Not blazing fast, but the pump did it’s job.
Yes, a satisfying day.
Now we have to figure out what caused the change.
The weekend before last, there was a swell in the harbor:
The old girl was rolling. Could that motion have contributed to the shift between tanks (through holes in the tank bulkheads)?