History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c29.s1.t2.3

v1.c29.s1.t2.3

The houses had a pronounced batter or slope and never encroached on the streets as is found at present. All houses had latrines and bath rooms disposing their waste into street drains. Houses had rubbish chutes, at the foot of which were some bins at street level. The rubbish bins stood at convenient places in the streets. The waste water entered the drains from tightly closed brick lined pits which had outlets to the drains about three quarters of the way up. These may be taken as forerunners of our septic tanks and grit chambers.