Jabsco Macerator Pump
Score: 78/100
Seaflo 33-Series
Score: 78/100Rankings
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.
The Seaflo 33-Series is a compact, pre-assembled 12V DC pressure system designed for marine and RV applications, featuring a 3-chamber diaphragm pump with an integrated accumulator tank. It delivers smooth, consistent water flow but is limited by an intermittent duty cycle and high current draw. Best suited for marine fresh water systems and RV van conversions requiring compact, demand-operated pressure.
| Attribute | | |
|---|---|---|
12 GPMbest | 3 GPM | |
— | 45 PSIbest | |
5 ft | 6 ftbest | |
12 Vbest | 12 Vbest | |
16 Abest | 8 A | |
15 %best | — | |
— | 140 °Fbest | |
| ↓ lower better | 5 lbsbest | 5.95 lbs |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Power(4) | ||
Flow Rate (GPM) | 12 GPM | 3.0 GPM |
Max Pressure (PSI) | PSI | 45 PSI |
Max Amperage (A) | 16 A | 8.0 A |
Duty Cycle (%) | 15 % | Intermittent % |
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 | 5.95 lbs |
Noise Level (dB) | high dB | 60 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.
Professional reviewers and editors highlight the system's reliability and ease of installation for marine and RV use, emphasizing its powerful 3.0 GPM flow and ultra-quiet performance.
Search results provide no consumer reviews, ratings, or feedback.
“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”
