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What is Most impoant pre-requisite in sanitary latrine is : and explain in detail?
Water seal Water seal: The most impoant pa in a sanitary latrine is the water seal. The water seal is the distance between the level of water in the trap & the lowest point in the concave upper surface of the trap It has two impoant functions It prevents access by flies It prevents escapes of odors & foul gases The depth of water seal in the RCA latrine is 2 cm