the Accumulation is believed to have been formed by residues from the construction sites.
"We are doing everything we can to address this as quickly as we can and ensure that our customers are not affected," says Alex Saunders at the water company, Thames water.
in the city's sewers is not unusual, but it has just found ”the mountain” is the largest of its kind. Pickaxes, drills and other tools needed in the two-months long efforts to get off the mountain.
the Big stoppers are found now and then in the London sewer system. Two years ago it was discovered a ”fettberg” several tons, formed by, inter alia, paper towels and vegetable oil.
Read more: Defiantly fettberg gave way – after nine weeks
Read more: This is Stockholm's worst fettklump