Drainage means removal or surface and subsurface water by natural and artificial mean. Under ground drainage provide comprehensive range of drainage system including sewer, pipes, drain, perforated, surface water and cable duct system. Underground drainage can take the from of pipe drain, mole pipe, deep ripping or sub soiling. Under ground also depend on the diagnosis of the problem to carry the proper function pipes installed under the water for the drainage work.

Functions:

Function of these pipes is to discharge the under ground water in excess. Under this drainage system these polyethylene pipes and conduits resist the most chemical products and solvents. in this installation there  is a need of large drainage pipes which intercept ground water flow or  to lower the water table over a wider area. Drains can be laid using clay pipes or PVC plastic pipe and French drains (where the drain is lined with stones), are sometime laid. The different pipe types have advantages and disadvantages for ease of handling, performance and cost which should be discussed with your drainage contractor. Pipe drains can be laid using an excavator digger, continuous trencher or trench less drain plough.

Mole drain also included in under water drainage. Successful mole drainage depend on the water being able to rapidly enter the mole drain in which water flow down the channel and exist the system either via an open ditch and deeply set pipe system. Under this type of under ground drainage system mole drainage only formed out of soil because they deteriorate over time as mole channel usually remain open for at least five years before remoling is required. these moles can be drawn from one open ditch when it is installed it is important that ditch has sufficient depth and capacity so that the drained mole remain above the flood .to resist mole drain channel to collapse rapidly they ate submerged by the water in the ditch even for   a few hours at a time. it is also critical to open the ditch system to be deep enough to allow a free board.

Conclusion:

Underground drainage is done by the help of most suitable and efficient equipment used for the drainage under the system.

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