In Dhaka, the capital of Bangladesh, the Dhaka Water and Sewerage Corporation supplies piped water. But in slums where this water supply service is not available, people have to rely on distribution of drinking water by military water trucks and purchase from water vendors. There are still many issues regarding access to safe and clean drinking water. In Bangladesh, rickshaws are used by the local people as a daily means of transportation. However, in the Dhaka metropolitan area, rickshaws are considered to be one of the causes of traffic congestion, and the government is promoting policies to reduce the number of rickshaws. This regulation has led to an increase in unemployment of rickshaw drivers. The water business utilizing bicycle-mounted water purification equipment in the Dhaka metropolitan area is a new water business model that has contributed to the access of safe and clean water. It can also be one of the measures to provide job opportunities to rickshaw drivers. In order to evaluate the feasibility of the business model, we identified areas that have problems in access to water in the Dhaka metropolitan area, and checked the water supply conditions in those areas.