 Springs are seen in some dambos.What this means in practice is that it may take a long time, perhaps several years, for water from a heavy rainy season to percolate through hills and emerge in a dambo, creating lagoons there or a flow in downstream rivers which can't be explained by the previous year's rainfall.Dambos may be involved, for instance, in explaining puzzling variations in water level or flow in Lake Mweru Wantipa and Lake Chila in Mbala.