UNIT – III
CONSERVANCY AND WATER CARRIAGE SYSTEMS
– SEWAGE AND STORM WATER
ESTIMATION – TIME OF CONCENTRATION – STORM
WATER OVERFLOWS COMBINED FLOW –
CHARACTERISTICS OF SEWAGE –EXAMINATION OF
SEWAGE – B.O.D. – C.O.D.
EQUATIONS. DESIGN OF SEWERS – SHAPES AND
MATERIALS – SEWER APPURTENANCES
MANHOLES – INVERTED SIPHON – CATCH BASINS
– FLUSHING TANKS – EJECTORS, PUMPS
AND PUMP HOUSES – HOUSE DRAINAGE –
COMPONENTS REQUIREMENTS – SANITARY
FITTINGS-TRAPS – ONE PIPE AND TWO PIPE
SYSTEMS OF PLUMBING