Drainage pipe system and a method for generating suction pressure from a moving fluid

A method for generating suction pressure in a drainage pipe system from a moving fluid, wherein the drainage pipe system comprises a main drainage pipe and an outlet section comprising an extension pipe that transitions into an open-sided outlet channel, and wherein the extension pipe is sized to fit either internally or externally with respect to the main drainage pipe, the method comprising:

• positioning the main drainage pipe such that the inlet of the main drainage pipe is positioned to access a fluid to be drained;
• configuring the outlet section such that the extension pipe can extend and retract along the surface of the main drainage pipe;
• draining the fluid by positioning the open side of the open-sided outlet channel toward an external mating surface and aligning the open-sided outlet channel such that a flow of a moving fluid is directed through the channel, thereby creating suction pressure generated by the flow inside the channel.