Little Giant - Duplex Sewage Pump System 2” Discharge –Model 16G-DPLX - 509818

The Little Giant 16G-DPLX Duplex Grinder Pump System (MPN 509818) is a heavy-duty wastewater package designed for demanding residential and light-commercial sewage applications. The system includes two 1 HP submersible grinder pumps, a 30 in × 36 in structural-foam basin, steel cover, check valves, and a duplex control panel. Its alternating pump operation distributes run time between both pumps while providing backup pumping capacity during high inflow or primary-pump failure. Each 16G grinder uses a high-speed stainless steel cutting mechanism to reduce sanitary waste before discharge, making this package ideal for pressure sewer systems, lift stations, and clog-prone wastewater installations.

Cross References

• Little Giant — 509818
• Little Giant — 16G-DPLX
• Little Giant — 509809 / 16G-M151-20 (included grinder-pump model)

Usage

The Little Giant 16G-DPLX is used to collect and pump sewage, effluent, drainage, or seepage water where dependable duplex operation is required. It is commonly installed in residential developments, light-commercial buildings, pressure sewer systems, septic lift stations, basement plumbing systems, and other applications where wastewater must be raised to a higher sewer connection. The duplex controller alternates operation between the two pumps to balance wear, while the second pump provides additional capacity during peak inflow and backup operation if one pump is unavailable. The grinder mechanisms reduce flushable waste and debris before moving it through the 2-inch discharge piping.