This thesis is constructed to improve the sewerage system of the tank 35t001 1 unit for efficient use. For the purpose of quality management, environmental policy, conservation of water resources of the company.Limited (PCL), and reduced costs for water supply department c12p caused water to overflow out of the tank, leaving 35t001. System, which supplies water to the tank 35t001.Without power or engine power. Water that overflows back into the tank 35t001 40-50 percent. Reduce the water to spend on it.
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