Editing Drainage (section)

==History==

===Early history===
[[File:A drain at Lothal.jpg|thumb|Remains of a drain at [[Lothal]] circa 3000 BC]]

The [[Indus Valley Civilization]] had [[sewerage]] and drainage systems. All houses in the major cities of [[Harappa]] and [[Mohenjo-daro]] had access to water and drainage facilities. Waste water was directed to covered [[gravity sewer]]s, which lined the major streets.<ref>{{cite book |last=Arthur Coterell |url=https://archive.org/details/encyclopediaofan0000unse_d6g9 |title=The Encyclopedia of Ancient Civilisations |publisher=Rainbird Publishers |year=1980 |isbn=0-7112-0036-X |pages=176–178 |url-access=registration}}</ref>

===18th and 19th century===
[[Image:Tank Stream.jpg|thumb|[[Tank Stream]], a historical drain in the City of Sydney, Australia]]

The invention of hollow-pipe drainage is credited to Sir Hugh Dalrymple, who died in 1753.<ref>{{cite web |date=1705 |title=Broadside eulogy dedicated to Patrick, Earl of Marchmount, Sir Hugh Dalrymple, and others |url=http://digital.nls.uk/broadsides/broadside.cfm/id/15893 |access-date=5 April 2015 |publisher=National Library of Scotland Digital Gallery}}</ref>