BigPatents India

Fourteen litres of water flushed with excreta of one person is not the microbiological need for its treatment. Just for the presence of this large amount of water long septic tank and deep soakage pit are necessitated; still solids are left in the tank. They need to be obnoxiously cleaned over a number of years. In case of Lajja latrine half litre of water with one person’s excreta fall in a medium exposed to atmosphere above through gas pipe and below over a layer of brick ballast having entrapped air, creates microbes that eat the excreta together with its solids. Pan with water seal designed for minimal use of water for cleaning sits directly over fiber-glass dome, the size of base of which corresponds to formation of number of microbes sufficient to eat away excreta of eight persons daily.