What are Pumps? Pumps are devices used for transporting fluids by the mechanical action of a piston, vane, or plunger. Different pumps serve different purposes in diverse settings – they are used in our homes to ensure continuous water supply for all our daily needs such as bathing, washing, cooking, and drinking; in agricultural fields for supplying water to crops effectively; in factories; in industries and in fire fighting equipment such as water sprinklers to tackle with extremely dangerous fire instances. Overview of Pumps and its Working in Detail The nature of the job the pump is meant to perform