“…Domestic water consumption can be extremely variable due to a range of factors including climate, culture, economy, individual demands, occupant attributes and appliance characteristics. For example, the daily per capita domestic water consumption (excluding WC flushing) based on in-house metering figures or from metering records of water authorities, reportedly, is from 65 to 175 L hd À1 d À1 in some European countries, from 105 to 237 L hd À1 d À1 in the USA, and from 150 to 365 L hd À1 d À1 in some Asian cities [2][3][4][5][6][7][8][9]. It was reported that the averages could be approximated by a normal distribution ranging from 65 to 365 L hd À1 d À1 (24-105 m 3 hd À1 yr À1 ), with an average of 164 L hd À1 d À1 (60 m 3 hd À1 yr À1 ) and a standard deviation of 81 L hd À1 d À1 (30 m 3 hd À1 yr À1 ) (pX0.3, Shapiro-Wilk test) [10].…”