Dewatering of drainages is generally done using centrifugal pumps, but using centrifugal pump is not much effective in complete removal of the suspended and heavy solids and also it consumes lot of electric power for its operation. Moreover centrifugal pumps are costlier. In such cases reciprocating pump may be considered which works more efficiently in removal of drainage water containing big size particles. The main aim of this proposed work is to remove drainage water by the pneumatic

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... d spring return reciprocating pump, it reduces the man power required for the drainage cleaning activity. Instead of slider crank mechanism the pneumatic and spring system with reciprocating cylinder has been has been used which discharges the large sized drainage particles easily and there is no need of external power supply. The equipment cost is also very low when compared to the centrifugal pump and other drainage removal systems.