LSG-Series Omnivore grinder pumps from Liberty Pumps have V-Slice cutter technology for shredding performance in demanding sewage applications, according to the manufacturer. The hardened stainless steel cutting system shreds jeans, shop rags, diapers, sanitary napkins and other difficult solids into fine slurry with infrequent jamming. Models are available in single- or two-stage designs, providing maximum pumping heads to 180 feet. Complete pre-designed grinder systems are available in a variety of basin sizes. 800-543-2550; www.libertypumps.com.