Abstract
This paper deals with daily activities and the use of water, factors in water consumption and the estimation of water consumption. The frequency of various daily activities in a day is shown. In particular, patterns of excretion are compared to other daily activities. And on the basis of the results of an experiment on showering, two were selected from among six types of shower heads on the basis of the amount of hot water used, feeling, and energy saving effectiveness without sacrificing pleasantness. To clarify factors in home water use, the replies to a questionnaire were subjected to multivariate analysis. The factors affecting the amount of water used and consciousness of the need to save water are shown analyzed by the Quantity Theory Cluster I and II. And, on the basis of the survey data, the estimate of the amount of water used is done by regression analysis of frequency of use for the various purposes applied to the estimate equation and classified and shown as load estimate conditions.
