it's probably because you're washing it. They're self-cleaning you know...
(,
Sun 6 Jul 2008, 18:25,
archived)
You don't clean them unless you want to bandage your arms.
(,
Sun 6 Jul 2008, 18:25,
archived)
Factory settings means that it has an auto-clean that is always on...
(,
Sun 6 Jul 2008, 18:28,
archived)
