Water outlet
Water outlet - artificially-systemic removal of water from collectors , chambers, pipelines .
This type of communications is an invariable part in the system of underground structures.
Principle of Operation
Collectors, chambers, underground tunnels (including, for example, the subway ) have walls whose materials (usually reinforced concrete ) partially collapse over time, as a result, water begins to leak into these structures.
To drain this water, pits are built at the lowest points of the structures, where all leaking water flows, and pipelines are constructed from this pit to existing drains.