New Ultra Filtration water treatment plant designed, installed and commissioned by Optima Process Engineering (Pty) Ltd now completed for Redefine Properties flagship building The Towers, Cape Town CBD. Saving the city and Redefine Properties up to 135,000 liters of water each day. Our practical experience in water chemistry coupled with our experience in mechanical filtration processes ensures that our clients receive the most professionally designed water treatment plants, optimized for their requirements.