CountyClean, in charge of the repair operation where the world's largest 'fatberg' was found, has taken a survey of the damage with a remote CCTV camera.
This footage is thought to show the beginning of the fatberg under the streets of London.
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Conservative associations in crucial marginal seats including Richmond Park and Brentford & Isleworth are meeting to select candidates.
A total of 1.7 million attacks were carried out against more than 650,000 victims of which just over 52,000 were in the UK.
The men were using ropes to lever the sofa up to the first floor apartment because it was too large to fit through the doors.