95% Grit Removal (down to 100 Micron) ... Any Which Way

The PISTA® VIO™ Grit Removal System provides unprecedented application flexibility and superior grit removal efficiencies with a design that allows for full variability of the inlet and outlet channels — all while delivering 95% removal down to 105 microns (140 mesh). PISTA® VIO™ features a hydraulic vortex grit chamber design that utilizes a ring and tunnel system to create the vortex flow pattern that facilitates grit removal, rather than a baffle system typical of other vortex systems. This type of grit removal system —one of the first of its kind in the industry— provides the ability to design the inlet and outlet channels at any variable angle up to the full 360° of the chamber. Designers can flexibly arrange the system to fit existing sites, or maximize space during construction on new sites. The ring and tunnel system, in addition to providing application flexibility, also keys superior grit removal efficiencies. A ring attached to the chamber wall promotes the vortex flow pattern and separates the inlet and outlet paths, minimizing grit bypass. Influent flow is assisted through a tunnel that directs it towards the flat chamber floor for removal of grit. The result is industry best removal for particles down to 105 microns. Learn more at booth #4452 at WEFTEC 2026.