Ko Chengdu Pujiang County Sewage Treatment Plant i hangaia i te tau 2018, a kua whakamahia e te tipu he tukanga maimoatanga waikura ake ake. I roto i te poka waiora o te tipu, i whakamahia tuatahitia te potae rewharewha taketake o Hash II i kawemai mai i te United States. Heoi, i kitea i roto i te whakataurite tonu i runga i te waahi ko nga hua inenga o to tatou mita hāora rewharewha rewa he rite tonu ki era o Hash. Inaianei kua pai te whakamahi i ta maatau tikanga whakakorikori i te mita hāora rewa ki roto i te whare parakaingaki.
