“…Rainwater harvesting is adopted around the globe because it is the best alternative source of water supply, especially for regions facing water scarcity (Ani et al, 2009). Several countries are focusing on how to utilize rainwater because the existing water resources are limited (Nahar Myyas, Al‐Dabbasa, Tostado‐Véliz, & Jurado, 2022; Szpak et al, 2022). Rainwater harvesting and utilization is adopted by the following countries: Australia, Germany, Greece, China, Singapore, Philippines, Thailand, Japan, Jordon, Bangladesh, Indonesia, Italy, Korea, Botswana, Togo, Mali, Malawi, Ethiopia, South Africa, Namibia, Zimbabwe, Mozambique, Sierra Leone, Sweden, Spain, Tanzania, Brazil, Bermuda and the USA (Abu‐Zreig et al, 2019; Crosson et al, 2021; Domènech & Saurí, 2011; Fewkes, 2012; Ghisi et al, 2009; Karim et al, 2015; Liaw & Tsai, 2004; Matos et al, 2015; Nahar Myyas et al, 2022; Nandi & Gonela, 2022; Notaro et al, 2016; Sazakli et al, 2007; Szpak et al, 2022; Taffere et al, 2016; Villarreal & Dixon, 2005; Xiao Liu et al, 2021).…”