Lake Tanganyika

Zaire is also known as Congo

In the highlands and mountains of the West African Rift as well as Lake Tanganyika and Lake Mweru

The Congo river has 4 sources. They are the Chambeshi River, the East African rift, Lake Mweru and Lake Tanganyika.

do you mean into what body of water, then the answer is The Atlantic Ocean. If you mean what body at source, then it is Lake Tanganyika and Lake Mweru

Some lakes on the continent of Africa are Lake Albert, Lake Edward, Lake Chad, Lake Victoria, and Lake Tumba. Additional lakes in Africa include Lake Kariba, Lake Mweru, and Lake Nyasa.