Jabsco 18590-2092 Run Dry Macerator Waste Pump, 12V, Self-Priming to 5 Feet

The Jabsco 18590-2092 Run Dry Macerator Waste Pump is a 12-volt marine pump built to empty holding tanks quickly and safely when you are outside a discharge-restricted area. It is self-priming to 5 feet when wet and 4 feet when dry, and it can empty a typical 30-gallon holding tank in less than 3 minutes. With a duty cycle of 15 minutes continuous, this pump can handle up to 180 gallons in a single operation, making it equally suited to emptying fish box and livewell receptacles.

At the heart of the pump is a stainless steel 4-blade cutter that grinds waste solids down to 1/8 inch maximum particle size so material passes easily through the 1 inch discharge port. The impeller is made from Jabsco nitrile compound and the pump uses a lip-type seal. A run-dry protection device is built in to guard against accidental damage if the pump is operated without fluid. The inlet accepts a 1-1/2 inch hose barb or 1-1/2 inch NPT male connection, while the outlet uses a 1 inch hose barb.

This macerator pump is ignition protected, complying with USCG regulation 183.410 and ISO 8846 MARINE, making it safe for use in gasoline engine spaces aboard boats and RVs.

Specifications

• Brand: Jabsco
• Manufacturer Part Number: 18590-2092
• Product Type: Macerator Waste Pump
• Voltage: 12 Volts DC
• Flow Rate: 12 Gallons Per Minute
• Self-Priming: 5 Feet When Wet, 4 Feet When Dry
• Duty Cycle: 15 Minutes Continuous
• Inlet Port: 1-1/2 Inch Hose Barb and 1-1/2 Inch NPT (Male)
• Outlet Port: 1 Inch Hose Barb
• Maximum Particle Size: 1/8 Inch
• Macerator Blades: 4-Blade Stainless Steel Cutter
• Impeller Material: Jabsco Nitrile Compound
• Seal Type: Lip Type
• Product Dimensions: 4.72 Inches W x 3.74 Inches H
• Color: Black
• Weight: 5.5 pounds
• Ignition Protection: Complies with USCG Regulation 183.410 and ISO 8846 Marine

Fitment

This macerator pump is designed for general marine and RV holding tank installations and is not limited to a specific make or model.

Replaces (OEM)

No OEM cross-reference numbers are listed for this part.

Frequently Asked Questions

What is the Jabsco 18590-2092 used for? The Jabsco 18590-2092 Run Dry Macerator Waste Pump empties marine holding tanks when you are outside a discharge-restricted area, and it also works well for draining fish box and livewell receptacles.

How fast does this macerator pump empty a holding tank? A typical 30-gallon holding tank empties in less than 3 minutes with the Jabsco 18590-2092, and its 15-minute continuous duty cycle allows up to 180 gallons to be pumped in a single operation.

Is the Jabsco 18590-2092 self-priming? Yes, this pump self-primes to 5 feet when wet and to 4 feet when dry, so it does not need to be flooded before startup.

What size particles can pass through the discharge? The stainless steel 4-blade cutter on the Jabsco 18590-2092 reduces solids to 1/8 inch maximum before they pass through the 1 inch discharge port.

What voltage does this macerator pump run on? The Jabsco 18590-2092 operates on 12 volts DC.

What hose sizes does the Jabsco 18590-2092 use? The inlet accepts a 1-1/2 inch hose barb or 1-1/2 inch NPT male fitting, and the outlet uses a 1 inch hose barb.

Does this pump protect against running dry? Yes, the Jabsco 18590-2092 includes a run-dry protection device that helps prevent damage if the pump is operated without fluid present.

What is the impeller made of? The impeller in the Jabsco 18590-2092 is made from Jabsco nitrile compound, paired with a lip-type seal.

Is the Jabsco 18590-2092 ignition protected? Yes, it complies with USCG regulation 183.410 and ISO 8846 MARINE for ignition protection, making it suitable for use near gasoline engines.

How much does this macerator pump weigh? The Jabsco 18590-2092 weighs 5.5 pounds.

What is the flow rate of the Jabsco 18590-2092? This macerator pump delivers a flow rate of 12 gallons per minute.

Can the Jabsco 18590-2092 be used in an RV as well as a boat? Yes, this 12-volt macerator pump is suited to both RV and boat holding tank applications.