Jabsco Macerator Pump
Score: 78/100
SEAFLO Marine Water Pump
Score: 85/100Rankings
The Seaflo 55-Series 5.5 GPM marine water pump is a heavy-duty, self-priming diaphragm pump designed for high-volume applications in marine, RV, and off-grid settings. It delivers 60 PSI of pressure with a flow rate of 5.5 GPM, supporting up to five simultaneous outlets without requiring an accumulator tank, though one is available for reduced cycling. While it offers excellent performance and durability, the high amperage draw requires careful electrical planning.
The Jabsco 18590-2092 is a high-performance macerator pump designed for efficient waste transfer in marine and RV applications. Its primary limitation is a short 15-minute duty cycle, which can lead to overheating if used continuously. It is best suited for intermittent use cases where quick, clog-resistant emptying is required.
| Attribute | | |
|---|---|---|
12 GPMbest | 5.5 GPM | |
— | 60 PSIbest | |
5 ft | 6 ftbest | |
12 Vbest | 12 Vbest | |
16 A | 18.9 Abest | |
15 % | 100 %best | |
— | 140 °Fbest | |
| ↓ lower better | 5 lbsbest | 14 lbs |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Power(5) | ||
Flow Rate (GPM) | 12 GPM | 5.5 GPM |
Max Pressure (PSI) | PSI | 60 PSI |
Horsepower (HP) | HP | N/A HP |
Max Amperage (A) | 16 A | 18.9 A |
Duty Cycle (%) | 15 % | 100 % |
Features & Protection(4) | ||
Thermal Protection | false | true |
Pressure Switch | false | true |
IP Rating | IP68 | N/A |
Warranty Length (months) | months | 48 months |
Build & Durability(5) | ||
Motor Type | Permanent Magnet | Diaphragm |
Weight (lbs) | 5.0 lbs | 14.0 lbs |
Noise Level (dB) | high dB | Low dB |
Diaphragm Material | Nitrile | Santoprene |
Valve Material | EPDM | |
Installation & Compatibility(3) | ||
Self-Priming Lift (ft) | 5 ft | 6 ft |
Max Liquid Temperature (°F) | °F | 140 °F |
Port Size (in) | 1.5 in | 0.5 in |
Products in the top-left offer the best value (high score, low price).
Marine industry reviewers praise the reliability and 4-blade cutter upgrade, positioning it as a standard for professional marine installations.
Users praise the speed and self-priming features but complain about noise and overheating issues when exceeding the duty cycle.
“Blasts through waste fast-emptied my 40-gal tank in 2.5 min”
“Run-dry saved it when hose clogged”
“Overheats after 10-12 min on big loads”
Professional reviewers and editors highlight the pump's heavy-duty build quality and consistent performance, noting its ability to support multiple fixtures without pressure loss. Experts praise its quiet operation and built-in thermal protection, positioning it as an economical yet reliable workhorse for boats and RVs. The inclusion of an accumulator tank is recommended for surge prevention and reduced cycling, enhancing overall system stability.
Everyday users and consumers generally praise the pump for its reliability in marine and RV setups, with high ratings on retailer sites indicating strong satisfaction. Common praise focuses on the strong pressure output and the ability to support multiple outlets simultaneously. Recurring complaints are minimal but include occasional priming delays when the system is air-locked, requiring patience during startup.
