WILLIAMS, C., 1987. Choices in pit latrine emptying. IN: Pickford, J. (ed). Rural water and engineering development in Africa: Proceedings of the 13th WEDC International Conference, Lilongwe, Malawi, 6-10 April 1987, pp.28-31.
This paper reviews the types of mechanical pit emptying equipment available, the effect of increasing travel distances on a pit emptying service and options for pit latrine sludge disposal. Data is presented for the Maseru urban area where the BREVAC LA equipment has been tested.