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2. Two-stage drainage ditch - Wikipedia

   en.wikipedia.org/wiki/Two-stage_drainage_ditch

   The two stage drainage ditch is classified as a 'surface' sustainable drainage system, contrary to a sub-surface system. The two stage drainage ditch is a modification of the land whereby grass benches which serve as floodplains are formed within the land of the watershed of the water system, shown in the diagram to the right. [1]

3. Sanitary sewer - Wikipedia

   en.wikipedia.org/wiki/Sanitary_sewer

   Vertical pipes, usually made of precast concrete, called manholes, connect the mains to the surface. Depending upon site application and use, these vertical pipes can be cylindrical, eccentric, or concentric. The manholes are used for access to the sewer pipes for inspection and maintenance, and as a means to vent sewer gases.

4. Drain commissioner - Wikipedia

   en.wikipedia.org/wiki/Drain_commissioner

   In Michigan, a drain may be a natural or artificial creek or ditch, or a massive pipe for carrying storm water. The territory served by a particular drain, its watershed , is typically organized as a drainage district and the drain commissioner levies tax assessments and directs construction or maintenance of drains and culverts on behalf of ...

5. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

6. Tile drainage - Wikipedia

   en.wikipedia.org/wiki/Tile_drainage

   Surface drainage: Facilitated by ditches and by maintaining natural channels to allow water to move downward by the force of gravity. Subsurface drainage: Built by burying pipes underground to remove excess water from the soil profile. Subsurface drainage is widely used by farmers. It has many advantages: [5]

7. Price to replace Florida Keys water pipes? $10 million a mile ...

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8. 3 pipe breaks in Florida Keys deplete water reserves, utility ...

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9. Drainage - Wikipedia

   en.wikipedia.org/wiki/Drainage

   High-density polyethylene pipe installation in a storm drain project, Mexico. Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water. The internal drainage of most agricultural soils can prevent severe waterlogging (anaerobic conditions that harm root growth), but many soils need ...