The Grundfos line of SL submersible wastewater pumps is designed to handle raw, unscreened sewage, effluent, large volumes of surface water and process water in municipal, utility and industrial applications. The solids-handling pump series, in motor ranges from 1.5 to 15 HP, is available in SLV/SuperVortex and SL1/S Tube impellers. The SLV/SuperVortex provides the free passage of solids up to 4” in diameter, making it ideal for liquids with a content of solids, fibers or gassy sludge. The SL1/S Tube also accommodates solids up to 4”, but is designed particularly for large flows of raw sewage.