After pioneering the first flat-floor forced vortex grit chamber, S&L continues to lead the industry in advanced hydraulic grit removal research and development by emphasizing a combination of CFD analysis and field testing. The state-of-the-art PISTA® brand is the most-specified in North America.
High removal efficiencies originate from the PISTA® Grit Chamber’s unparalleled hydraulic design, including its flat chamber floor, patented and low-energy axial-flow propeller. The combination creates a true vortex that effectively separates grit from organics and the waste stream. Forced vortex action distinguishes the PISTA® Grit Chamber from all other so-called “vortex” grit chambers because it does not rely on less efficient particle settling or gravity.