The purpose of this study is to investigate the factors of success.Problems on supervising a septic tank package of residential building condominiums in Bangkok, and the appropriate ways of controlling a septic tank work styles of residential condominiums.In the Bangkok metropolitan area.The data were collected by the staff. Responsible for control the tank water treatment of residential building condominiums in the area metropolis of 5.The building, the results showed that the water source, mainly from the activities of bath and toilets, toilet, water will all into the septic tank was installed which is embedded underground staff.1 people, this is not enough, because for many functions. And the lack of understanding of septic tank and supervision program The company a wastewater treatment tank designLaboratory 3 regularly every month.
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