Jabsco Sealed Macerator Self-Priming Pump 12V - 18590-2092
Manufacturer Part #: 18590-2092
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Jabsco Sealed Macerator Self-Priming Pump – 12V – 18590-2092
The Jabsco Sealed Macerator Self-Priming Pump is a powerful, reliable marine waste evacuation pump engineered to handle sewage and waste water efficiently in demanding onboard sanitation systems. Featuring a fully sealed motor and housing, this pump delivers dependable performance while protecting critical components from moisture intrusion and corrosion.
Designed for 12V DC marine electrical systems, the Jabsco sealed macerator pump is ideal for toilet discharge, holding tank evacuation, and waste transfer applications on boats, yachts, and RVs.
High-Efficiency Macerating Performance
Equipped with hardened stainless-steel macerator blades, the pump grinds waste and toilet paper into a fine slurry before discharge. This allows for smooth pumping through longer hose runs and varied plumbing layouts while minimizing the risk of clogs.
Self-Priming Design
The self-priming capability allows the pump to be mounted above the waste source, offering flexible installation options and consistent operation even in challenging layouts.
Fully Sealed Motor for Reliability
The sealed motor design protects internal components from water exposure, significantly increasing pump life and reliability in harsh marine environments. This makes the pump well-suited for frequent use and critical sanitation systems.
Built for Marine Sanitation Systems
Manufactured by Jabsco, a leader in marine sanitation technology, this macerator pump is built with corrosion-resistant materials and robust construction to withstand saltwater, vibration, and continuous onboard operation.
In the Box: 18590-2092
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(1) Jabsco Sealed Macerator Pump: 12V DC unit.
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(1) 1.5" NPT to 1.5" Barb Intake Port: (Depending on specific retail packaging, this may be pre-installed).
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(1) 1" Hose Barb Discharge Port: Integrated into the pump head.
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(1) Instruction Manual: With wiring diagrams and mounting templates.
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(1) Rubber Grommet Mounting Kit: For vibration isolation.
Key Features & Benefits
1. New Four-Bladed Chopper4
Older macerators often struggled with thick waste or heavy-duty toilet tissue. The 18590-2092 features a stainless steel four-bladed cutter that grinds waste into a fine slurry (particle size 1/8" max), ensuring smooth flow through the discharge line.
2. Run-Dry Protection Device
One of the most valuable upgrades is the integrated Run-Dry Protection. If the tank goes empty and the pump continues to run, the device senses the heat buildup and shuts the motor off before the impeller melts, potentially saving you from a costly replacement.
3. Sealed Motor & Manual Turn-Key
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Sealed Design: The motor is O-ring sealed and features a seamless shell to prevent internal corrosion in wet bilge environments.
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Manual Over-Ride: If the pump becomes jammed by a foreign object (like a wet wipe), there is a slotted shaft at the rear of the motor (under a rubber cap). You can use a screwdriver to manually turn the shaft and break the clog loose without taking the pump apart.
Technical Specifications
| Feature | Details |
| Model Number | 18590-2092 |
| Voltage | 12V DC |
| Flow Rate | 12 GPM (45 LPM) |
| Amp Draw | 16 Amps (20A Fuse Recommended) |
| Self-Priming | Up to 5 ft (1.5m) |
| Intake Port | 1.5" (38mm) Male Thread / Barb Combo |
| Discharge Port | 1" (25mm) Hose Barb |
| Weight | 5.0 lbs (2.3 kg) |
Pro-Tip for Maintenance:
"To keep your macerator running smoothly, always flush the system with fresh water after emptying your black water tank. If the boat is going to sit for a long period, adding a small amount of vegetable oil or specialized pump lubricant to the tank and running it through the pump will keep the rubber impeller from 'sticking' to the housing walls."
🛥️ Ideal Applications
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Marine toilet discharge systems
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Holding tank pump-out systems
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Black water and gray water transfer
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Boats, yachts, and RV sanitation systems
⭐ Why Choose Jabsco Macerator Pumps
Jabsco is a globally trusted name in marine sanitation solutions, known for engineering pumps that deliver reliable performance in harsh conditions. The Sealed Macerator Self-Priming Pump offers a dependable, low-maintenance solution for onboard waste handling.
Upgrade your sanitation system with the Jabsco Sealed Macerator Self-Priming Pump – 12V – 18590-2092, a durable, efficient pump designed to keep your marine waste system running smoothly.
Frequently Asked Questions (FAQs)
1. What is the Jabsco 18590-2092 macerator pump used for?
The Jabsco 18590-2092 is a 12V marine macerator pump designed to grind and transfer waste from onboard holding tanks. It can also be used for certain compatible fish box and livewell evacuation applications.
2. Is the Jabsco 18590-2092 self-priming?
Yes. The Jabsco 18590-2092 features a self-priming design with a maximum priming lift of approximately 4 feet when dry and 5 feet when wet, allowing flexible installation in marine sanitation systems.
3. What is the flow rate of the Jabsco 18590-2092?
The pump delivers a maximum flow rate of approximately 12.5 gallons per minute (GPM) at zero head. Actual performance depends on plumbing configuration, discharge height, and operating conditions.
4. How long does it take to empty a marine holding tank?
Under favorable conditions, the Jabsco 18590-2092 can empty a typical 30-gallon holding tank in approximately 3 minutes. Actual evacuation time varies depending on hose length, restrictions, and waste consistency.
5. Can the Jabsco 18590-2092 run dry?
The pump features automatic run-dry protection to help prevent motor damage. However, it should not be operated dry for extended periods. Follow the manufacturer's recommendation to avoid running dry for more than 30 seconds.
6. What voltage does the Jabsco 18590-2092 require?
The Jabsco 18590-2092 operates on a 12V DC electrical system, making it suitable for boats equipped with compatible 12-volt battery systems.
7. What size hose connections does the Jabsco 18590-2092 have?
The pump features a 1-1/2-inch inlet connection and a 1-inch outlet hose barb. The inlet accommodates compatible hose or threaded plumbing connections.
8. Does the Jabsco 18590-2092 grind solid waste?
Yes. The pump uses a stainless steel four-blade cutter to break down human waste and marine toilet tissue into smaller particles, helping facilitate transfer through the discharge plumbing.
9. Can the Jabsco 18590-2092 pump be used with saltwater?
Yes. The pump is designed for marine sanitation applications where saltwater may be present in the waste system. Flush and maintain the pump according to Jabsco's instructions to help prevent buildup and corrosion.
10. Is the Jabsco 18590-2092 suitable for continuous operation?
No. This macerator pump is intended for intermittent operation, with a maximum recommended continuous run time of approximately 15 minutes. Allow the motor to cool between extended pumping cycles.
11. Does the Jabsco 18590-2092 require a separate macerator blade?
No. The pump includes an integrated stainless steel chopping blade that processes waste before it passes through the pump's discharge outlet.
12. Can the Jabsco 18590-2092 be used to discharge waste directly overboard?
The pump can be incorporated into a marine holding tank discharge system, but overboard discharge is only permitted where applicable federal, state, and local regulations allow it. Always comply with marine sanitation laws and designated no-discharge zones.
13. What size fuse is recommended for the Jabsco 18590-2092?
The manufacturer's specifications recommend a 20-amp fuse for the 12V model. Always follow the official installation instructions for appropriate wiring and circuit protection.
14. Can the Jabsco 18590-2092 replace an existing macerator pump?
Yes. The Jabsco 18590-2092 can replace many compatible 12V marine macerator pumps. Verify the voltage, mounting dimensions, hose connections, and electrical requirements before installation.
15. What maintenance does the Jabsco 18590-2092 require?
Regular maintenance includes flushing the system with clean water, inspecting hose connections for leaks, checking electrical connections, and examining the impeller and cutter for wear or debris. Avoid pumping foreign objects, heavy paper products, or materials that could damage the cutting mechanism.
16. Is the Jabsco 18590-2092 ignition protected?
Yes. The pump is designed to meet applicable marine ignition protection requirements, including ISO 8846, making it suitable for installation in compatible marine environments when installed according to the manufacturer's instructions.
17. Can the Jabsco 18590-2092 pump handle toilet paper?
Yes. The stainless steel cutter is designed to process normal marine toilet tissue along with human waste. Avoid household paper towels, wipes, feminine hygiene products, and other materials that may clog or damage the pump.
18. What is the difference between the Jabsco 18590-2092 and 18590-2094?
Both models belong to the Jabsco 18590 Series sealed macerator pump family. The primary difference is operating voltage: the 18590-2092 is the 12V DC version, while the 18590-2094 is the 24V DC version. Always select the model that matches your vessel's electrical system.
WARNING: This product can expose you to chemicals including NICKEL (METALLIC) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.
Manufacturer : Jabsco
Manufacturer Part No : 18590-2092
UPC : 671880564373
Jabsco Sealed Macerator Self-Priming Pump 12V - 18590-2092 is backordered and will ship as soon as it is back in stock.
Jabsco Sealed Macerator Self-Priming Pump 12V - 18590-2092
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