Xylem 18590-2092 Marine Macerator Pump 12V DC for Waste Holding Tanks

The Xylem 18590-2092 is a compact 12-volt DC macerator pump designed for efficiently emptying marine and RV black water holding tanks. This self-priming pump features a stainless steel cutter blade that grinds raw toilet waste into a uniform slurry, reducing particle size to 1/8 inch (3mm) for easy transfer and discharge through standard hose systems.

Key Features:

• Self-priming capability up to 5 feet with run-dry protection device that automatically shuts off the pump
• Four-blade stainless steel macerator reduces waste to uniform slurry
• Flow rate of up to 43 liters per minute (9 gallons per minute) at 3 meter total head
• 15-minute continuous duty cycle allows emptying holding tanks up to 900 liters (200 gallons) in a single operation
• Powder-coated housing with sealed end-bells and bearings for marine durability
• Permanent magnet motor with fully enclosed stainless steel shaft
• Complies with USCG Regulation 183.410 and ISO 8846 MARINE for ignition protection

Technical Specifications:

• Voltage: 12V DC
• Current Draw: 16 amps
• Recommended Fuse Size: 20 amp
• Inlet Connection: 1-1/2 inch (38mm) hose barb and 1-1/2 inch NPT male
• Outlet Connection: 1 inch (25mm) hose barb
• Dimensions: 11.4 inches long x 4.7 inches wide x 3.7 inches high
• Maximum Recommended Total Head: 6 meters (20 feet)

This versatile pump is ideal for marine holding tank evacuation when not in discharge-restricted areas. The unit mounts on or near the black water holding tank and can empty a typical 30-gallon tank in less than 3 minutes. Also suitable for fish box and livewell applications where self-priming and macerating capabilities are beneficial.