A conventional drainage system is a series of corrugated polyethylene perforated pipes that are buried in a field and are typically connected to an ag main (collector line). The perforations allow excess soil water to enter the pipe to be transported away. The ag main (collector line) then discharges into a stream, ditch, pond, river or other surface impoundment. The conventional system is a free flowing drain functioning when needed with one purpose to remove excess soil water all of the time.