Ko te Tipu Whakapai Wai i Nanxi Old Industrial Park te tipu wai nui rawa atu i Nanxi, e whakamana ana i te wai mo te 260,000 tangata i Nanxi.Neke atu i te rua tau o te hanganga, kei te whakamahia te wahanga tuatahi o te tipu horoi wai i Nanxi Old Industrial Park i tenei wa.I roto i tenei kaupapa, ka whakamahia e matou to maatau hiko hiko, mita pH, mita turbidity, tuku pehanga me etahi atu taputapu.