The Grit Czar self-cleaning, hydrodynamic vortex-type grit removal system from Envirodyne Systems has no moving parts. It accommodates varying flows, has low headloss, and can be used for coarse to fine grit removal. It has no submerged parts to maintain and has a small footprint. It produces grit with low organic content. Water and air scour lines or mechanical means can be supplied to fluidize the grit and further scrub organics. Grit pumping options include air-lift, vacuum-primed and self-priming. 717/763-0500; www.envirodynesystems.com.