For a pump that handles mud, leaves, sand, and any solid up to 1.5″ without clogging, get the SludgeMaster™ air-driven high-flow pump. This trash pump operates at up to 300 gpm—our highest flow rate— runs on compressed air for continuous power supply. Weighing just 59 lbs, the SludgeMaster is constructed for rough handling and long life on land, sea, or offshore.