On a busy market day in Lemishami village, Letilia Lekula herds his goats to a dry, sandy riverbed with a stone wall built across it. The animals wait patiently as he pulls a wooden trough from a nearby thicket and then starts digging in the sand.
After about five minutes Lekula hears a splash. The sound is now so familiar to his goats that they circle around him as he scoops water from the hole in the sand into a trough for them to drink.