Packaged drinking water (PW) sold in bottles and plastic bags/sachets is widely consumed in low- and middle-income countries (LMICs), and many urban users in sub-Saharan Africa (SSA) rely on packaged sachet water (PSW) as their primary source of water for consumption.
you can refer to the following papers for more details
Article Sachet drinking water in Ghana's Accra-Tema metropolitan are...
Article Microbiological and Chemical Quality of Packaged Sachet Wate...