How do you clear out a fatberg?
Media playback is unsupported on your device

Scraping out the London sewers by hand

Fatbergs consist of a build up of fat, tampons, wipes and condoms that have been flushed down a drain.

Thames Water engineer Chris Casbolt shows how the masses have to be removed by hand in an east London sewer.

  • 13 Oct 2017
Go to next video: What causes fatbergs?