“…These challenges have been largely overcome through the development of computer-assisted personal interviewing (CAPI) approaches, as discussed by MacDonald et al 11 Prior to 2010, only a few articles reporting in detail or quantifying the use of multiple water sources had been published [12][13][14] but in recent years there has been a marked increase in research interest. 1,3,[15][16][17][18][19] The routine use of multiple household water sources is practiced across settings that vary in precipitation patterns, water resources, piped water availability, etc. For example, it has been reported in many countries across Southeast Asia, 17,[20][21][22] Sub-Saharan Africa, 2,3,12-16,22-24 North Africa, 25 Western Asia, 26 East Asia, 27 South Asia, 8,28 Oceania 1,11,19 , and Latin America.…”