Instructions for the Zero Gravity Toilet in 2001 | Boing Boing:

In 2001: A Space Odyssey, natural calls for Heywood Floyd. Fortunately, there are very detailed instructions posted on how to use the Zero Gravity Toilet. (This is Kurbick, after all.) Also fortunately, the toilet is apparently the "standard zero-gravity type" so one should be familiar with its operations. Below are the instructions as captured by 2001 obsessives.