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This study has been undertaken to investigate and estimate design needs and propose optimum solution for lifting facility, and detailed calculation for lifting facility at Water Treatment Plant. Prior to decide optimum solution for the problem, evaluation of design concept has been done through various steps. Function decomposition and identification of individual function of the each subsystem, internal and external search for creating solution domain, next, best optimum solution has been selected via logical approach which was pairwise comparison and weighted decision matrix, and detailed calculation is performed as final step of the research.
BTJ Pathirathna (Mon,) studied this question.