How do Space Marines keep their armour so clean? I've always wondered. In a setting where one of the main antagonists is literally a god of filth, you'd think people would look a little more dirt-caked. Throughout the 30 Horus Heresy novels I've read I can't recall a single Space Marine ever taking a shower or a bath—their armour must absolutely reek.
And the truth is, the job of cleaning it likely goes to some poor menial; a mortal serf who sits in a dark room for days on end, scrubbing away at caked on daemon innards and Death Guard anthrax with a scourer. Such is the grimdark future.
