Los hombres trabajan en el pozo para llenar el agujero con grava - Fotografía de stock

London, England - March 10, 2015: Man in orange overalls hard hat and boots work on a borehole to fill the hole with gravel and a blue water pipe protrudes from the hole, the ground is muddy. one man holds the pipe while another pours in the gravel a third man climbs on the drill rig