Grundfos introduces a range of SL submersible wastewater pumps to minimize known risk factors and reduce maintenance requirements and costs. SL pumps will handle municipal or industrial wastewater, wastewater with fibers, drainage and groundwater, process and cooling water. Two types of impellers are available: the SLV/SuperVortex Impeller, which provides free passage of solids up to four inches (100 mm) in diameter, and the SL1/Channel Impeller that accommodates solids up to four inches, but is designed specifically for large flows of raw sewage. http://www.yccpump.com/grundfos.htm, http://www.grundfos.us.
