London 'Fatberg' weighing 15 TONNES found blocking sewers | Mail Online "A lump of fat the size of a double decker bus has been discovered clogging a London sewer. The Fatberg, described as 15 tonnes of festering food mixed with wet wipes and a host of other disgusting ephemera, was found blocking pipes under Kingston in south London. The revolting mass caused sewage flows through the pipes to be reduced to five per cent of normal capacity and was created by people pouring cooking oils down the drain and flushing sanitary products." An iceberg sank the Titanic, will a fatberg sink London? In China they don't even usually flush toilet paper. The convention is all that stuff goes into a bin next to the toilet. and is disposed of in the refuse or garbage....because often the local sewerage system is likely to be rather delicate and fragile.