Grim footage shows JUST how filthy Tubes are with bucket of black sludge from just 4 seats – as dirtiest lines revealed [Video]

GRIM footage has revealed how filthy the tubes are – with grime from just four seats filling a large bucket with black sludge.

Steven James has gone viral over a clip of him and his team steam-cleaning seats on a moving Northern Line tube.

Just four seats filled up this bucked with black sludgeCredit: SWNS

The crew cleaned the seats on the Northern LineCredit: SWNS

Their video racked up millions of views on social mediaCredit: SWNS

Steven James and his crewCredit: SWNS

The lighthearted content was intended to promote his carpet cleaning business, Mr Carpet Clean, which he has been running for seven years.

In the video, Steven and his team spray the tube seats before using a powerful vacuum to deep-clean them.

They then empty the contents into a yellow bucket, revealing black sludge and showing viewers just how filthy the tube seats are.

The Hertfordshire dad-of-five started posting cleaning videos from “high traffic areas” on his …