Williams, Chris Choices in pit latrine emptying 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. untagged 2018-02-12
    https://repository.lboro.ac.uk/articles/conference_contribution/Choices_in_pit_latrine_emptying/9587195