Actually, the outer hull picked up quite a bit of rust and staining from our long immersion in ocean water.
I figured, if we ever got desperate for Oxygen, we could send out some hapless keel-scrapers to salvage the rust.
Interested?
Hey...I like rust....
At least I like red heads...
Sure. Sign me up.
I actually had the distinct pleasure of spending a week scraping sea life off of my boats screw. We could only use plastic scrapers, as anything harder could damage the screw itself, resulting in a noisier screw.