New York Tries to Rid Its Sewers of FOG (Fat, Oil & Grease)
Out of sight of most New Yorkers is a sprawling underground labyrinth of about 7,500 miles of sewers, part of the city’s vast and, in many cases, aging subterranean infrastructure. Besides old age, the sewers, which are essential to the health of the city, are under assault from a nemesis above ground: grease.