Drain blockage is a crucial problem in the urban environment. It heavily affects the ecosystem and human health. Hence, routine drain inspection is essential for urban environment. Manual drain inspection is a tedious task and prone to accidents and wate
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2)To add a drain for the plumbing or heating system.Though this is not an everyday necessity, there may come a day when you might want to drain down your plumbing. For example, for the hot water system if you have an electric or gas tank-style heater, the only drain may be from t...