kivik 8-06-2021, 20:06 Просмотров: 89  
Drainage is the process of removing water from the surface or sub-surface from a given area. Drainage systems include all the network of pipes of public or private property that transports the rainwater, sewage water, and other wastewater to the point or location of disposal. The main purpose of using a drainage system is the collection and removal of wastewater systematically so that the health conditions remain maintained in a building. Drainage systems are designed in order to dispose of wastewater as quickly as possible.


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