re: How do they wash clothes up there? - I have to reword that to some extent.
I have no doubt that they could use a washer AND dryer up there. When clothes come out of the washer, they are not exactly dripping wet because of the oscelation in the machine, OG or not it could work and there's plenty of oxygen up there for the dryer. Good for them that they recycle whatever water evaporates (reverse Osmosis, a great thing!).
In the meantime, I think that they use new or fresh cleaned clothes.
For the sake of me not saying anything else. Raoul, do you know?