H Hydrex™ Comprehensive range of water treatment chemicals to suit all water treatment needs. Sludge treatment M Multiflo™ Multiflo™ is a clarification process technology that covers a wide variety of applications. Adsorption - Extraction S Spidflow® Dissolved air flotation (DAF) technology for the clarification of any kind of water source containing suspended solids, organic matter, algae and floating matter (grease, oil, etc.). Sedimentation - Clarification - Flotation