The purpose of this thesis was to analyze the malfunctioning vacuum sewer system in
Ondangwa, Namibia. The system did not form adequate vacuum to transport sewage from
the formation place to the vacuum station and therefore the collection chambers were
flooding. The aim was to find the failures that caused malfunctioning, causes of the
failures and solutions for the failures. In addition, four other vacuum sewer systems in
Namibia were studied for comparison purposes. They were located in Gobabis, Henties
Bay, Kalkrand and Stampriet. A two month field trip was done in Namibia in October
and November 2014 and three methods were used to analyze the vacuum sewer systems
in Namibia. The methods were literature survey, semi-structured interview and
observation.