2025 SPEAKERS

Les Lange
Director
Zambezi Sanitation
“specialising in disruptive technologies related to water”
Les Lange is a director at Zambezi Sanitation, pioneering disruptive solutions in the water sector. He developed the Zambezi Eye toilet cistern to curb water losses and the Zambezi Gutters for rainwater harvesting. With M.Eng and B.Com degrees, Les brings 46 years of experience in engineering, water, energy, mining, and consulting. He previously served as Chief Engineer and Senior Manager Assets at Rand Water.
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