Connecting Water Lines in Trench

What happens here

The video captures a man lying in a narrow, freshly dug trench in a grassy area. He is actively engaged in connecting two sections of black flexible pipe, which appear to be part of an underground water line system. He mentions that he is putting in 2000 feet of pipe, has recently poured 5 yards of concrete, and is working on mirror fountain water lines. He is focused on the pipe connection, possibly tightening a clamp or a compression fitting. A hammer with a blue handle is visible lying in the trench near him.

Goal: A worker is seen in a narrow trench, connecting sections of black pipe, likely for an irrigation or water supply system, while discussing the scope of the project.