What really happens when you flush a plane toilet?
 

http://img-s-msn-com.akamaized.net/t...6&q=60&o=f&l=fUnless you?ve flown first class, or in a private jet, aircraft loos are windowless, cramped affairs that usually reek of cheap sanitizer. But they have come a long way ? and rarely get the recognition they deserve.

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