Inside the pipe
Because manholes projecting above the lake surface would pose safety hazards, custom accessways were developed. Each is connected by divers, water is pumped out, and a maintenance worker descends to open the water-tight manhole hatch to allow inspection and cleaning.
Because manholes projecting above the lake surface would pose safety hazards, custom accessways were developed. Each is connected by divers, water is pumped out, and a maintenance worker descends to open the water-tight manhole hatch to allow inspection and cleaning.
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