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Floor drain system in bathroom, Korea. A floor drain is a plumbing fixture that is installed in the floor of a structure, mainly designed to remove any standing water near it. They are usually round, but can also be square or rectangular. They usually range from 2 to 12 inches (5.1 to 30.5 cm); most are 4 inches (10 cm) in diameter.
The concrete floor of the manhole has channels to minimize accumulation of solids. Interior of a large sanitary sewer viewed from an access manhole chamber. In the developed world, sewers are pipes from buildings to one or more levels of larger underground trunk mains, which transport the sewage to sewage treatment facilities.
The National Water Supply and Drainage Board (commonly abbreviated as NWSDB) is the National Organization responsible for the provision of safe drinking water and facilitating the provision of sanitation to the people in Sri Lanka. The organization had its beginning as a subdepartment under the Public Works Department for water supply and drainage.
It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and screening chambers of the combined sewer or sanitary sewer. Sewerage ends at the entry to a sewage treatment plant or at the point of discharge into the environment. It is the system of pipes, chambers, manholes or inspection chamber, etc. that ...
Sri Lanka Muslim Congress: 12 January 2015 - 15 November 2019 Maithripala Sirisena: Mahinda Rajapaksa: Sri Lanka Podujana Peramuna: 22 November 2019 - 12 August 2020 Gotabaya Rajapaksa: Vasudeva Nanayakkara: Democratic Left Front: 12 August 2020 - Gotabaya Rajapaksa: Keheliya Rambukwella: Sri Lanka Podujana Peramuna: 23 May 2022 - 19 January ...
Sri Lanka Freedom Party: 19 November 2005 - 9 January 2015 Minister of Defence and Urban Development Rauff Hakeem: Sri Lanka Muslim Congress: 12 January 2015 - 17 August 2015 Maithripala Sirisena: Minister of Urban Development, Water Supply and Drainage 4 September 2015 – 17 June 2019 Minister of Urban Planning and Water Supply Vijitha Herath
Sri Lanka Freedom Party: 23 April 2010 - 9 January 2015 Mahinda Rajapaksa: Ministry of Irrigation and Water Resources Management Duminda Dissanayake: Sri Lanka Freedom Party: 12 January 2015 - 22 March 2015 Maithripala Sirisena: Ministry of Irrigation and Water Resources Management Gamini Vijith Vijithamuni Soysa: Sri Lanka Freedom Party
A trench drain (also known as a channel drain, line drain, slot drain, linear drain, or strip drain) is a specific type of floor drain featuring a trough- or channel-shaped body. It is designed for the rapid evacuation of surface water or for the containment of utility lines or chemical spills.