The ancient Indus systems of sewerage and drainage that were developed and used in cities throughout the Indus region were far more advanced than any found in contemporary urban sites in the Middle East and even more efficient than those in many areas of Pakistan and India today.
De gamle Indus systemer kloakering og dræning, der er udviklet og anvendt i byer over hele Indusregion var langt mere avanceret end noget fundet i visse moderne byområder i Mellemøsten og endnu mere effektive end dem i mange områder af Pakistan og Indien i dag.