The purpose of an air gap is not really to allow air to escape but rather to keep dirty water from back flowing into the DW. An autovent allows air into the system to allow for proper drainage and an air gap is not dependant on one or vice versa. The autovent takes the place of a vent stack to the roof.
Sudan is a member of the United Nations, the African Union, the Arab League, the Organisation of Islamic Cooperation and the Non-Aligned Movement, as well as an observer in the World Trade Organization. Its capital is Khartoum, the political, cultural and commercial centre of the nation.
In geographic East Africa, the largest country by area is Sudan (1,886,000 km2). In geographic Eastern Africa (Indian Ocean coastal), the largest by area is Ethiopia (1,10 â¦ 0,000 km2). Until the independence of South Sudan in 2011, Sudan was the largest country on the continent of Africa.p until June 2011, the answer was the Republic of Sudan; however, South Sudan declared independence (from the Northern portion) in June 2011. As they are now separate countries, the title of largest country in Africa now falls to: Algeria with 2,381, 740 km2, followed by the.