HWT HWT is a turnkey water treatment engineering company specializing in the design, construction and commissioning of potable water and effluent treatment plants. Design philosophy is based on the utilization of appropriate technology, ease of operation and cost efficiency.Complete solutions are offered- from concept to hand over. At startup client participation is invited and where possible, existing equipment is included in the project. On commissioning, clients are provided with detailed operational training. HWT also offers maintenance and emergency backup services.The company was founded in 1994 and since then, HWT has successfully commissioned in excess of 100 industrial, food processing, wine effluent, sewage and potable/drinking water treatment plants. In general, the treatment plants are fully automated, requiring minimal operator intervention.