Diner carpet cleaned

At a mercifully-unnamed diner, Mike Pailliotet professionally cleans some truly nasty carpet: low-pile commercial standard at a stage far beyond gross. It's been transformed into a rubbery, slightly shiny mat of congealed grease.
“We live in a primitive time, don’t we, Will? Neither savage nor wise. Any rational society would either ban carpet in diners or let me take my dog in there.” — Hannibal Lecter.
Here's another delight from Pailliotet's channel, titled 'Manky Urine Filled Carpet Cleaning Fail - See The Funk That Hides In Carpeting.' The delights are revealed about 6m30s in.

A Zipper cleaning wand alone is more than two grand. The TruckMount forums seems a good place to find out how useless consumer-grade carpet cleaners are.