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4th International Conference on Rain Water Cistern Systems
Manila , Philipines - August, 1989

Section K: Alternative Designs Of Rain Water Cisterns

Paper K.3

The Design And Evaluation Of A Rain Water Cistern System For WC Flushing

A. Fewkes
Trent Polytechnic, UK


The general problem concerns the use of rainwater for WC. flushing. In the United Kingdom 3{h of the potable water supplied to the domestic sector is used for the transportation of foul waste. This paper describes a method of obtaining the optimum storage capacity for which both the input and output are stochastic processes; that is, two unrelated time series. Two WC. supply systems are evaluated using a numerical simulation model. The findings indicate that the storage volumes of earlier designs were considerably aver estimated; moreover additional storage is of no use unless the catchment area is also increased.

PDF of full document (13pp, 260kb)

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