MARSOMGOR 12V Macerator Pump 18590-2092 — 12 GPM Self‑Priming, 4‑Blade Stainless Chopper, Run‑Dry Protection

The MARSOMGOR 12V Macerator Pump 18590-2092 is a self-priming, high‑torque waste pump that chops and evacuates sewage and gray water quickly and reliably for RV, marine, and household use.

This compact macerator combines a robust copper motor with a stainless four‑blade chopper to reduce solids and move wastewater through narrow discharge lines. Designed for environments where fast tank emptying and dependable operation matter, it offers thermal safeguards, corrosion resistance, and low noise for comfortable onboard or at‑home use.

How fast and how much waste can this pump move?

The 18590-2092 delivers up to 12 gallons per minute and can self‑prime up to roughly 5 feet, making it capable of emptying standard storage tanks quickly. One continuous run cycles are sized to handle large tank volumes, letting users clear holding tanks with fewer starts and stops.

• Flow rate: up to 12 GPM for rapid evacuation
• Self-priming lift: up to 5 ft for flexible installation
• Typical performance: empties common 30‑gallon tanks in minutes
• Run capacity: engineered to discharge large tanks in extended runs

What makes the chopper and motor better than basic macerators?

This model pairs a solid copper DC motor with a four‑blade stainless chopper that reduces particle size more efficiently than many three‑blade designs. Finer maceration allows waste to pass through 1‑inch discharge plumbing without clogging while minimizing strain on the motor.

• Four stainless blades for quicker pulverizing action
• Particle output: reduced to about 1/8 inch maximum
• Durable copper motor for consistent torque and longer life
• Double-sealed bearings and triple O‑ring protection

How does the pump protect itself and the system during operation?

Built‑in safeguards reduce the risk of damage from overheating or overload. If temperatures rise too high, the unit shuts off automatically and will restart once it cools, helping prevent motor failure while preserving surrounding equipment and wiring.

• Automatic thermal shutoff and auto‑restart when safe
• Overload protection to prevent motor burnout
• Low‑noise, low‑vibration design suited to cabins and boats
• Corrosion‑resistant coating for long service life in damp environments

Where can I install and use this macerator?

The pump is versatile enough for boats, RVs, and domestic setups where compact, powerful waste removal is needed. It works well where discharge restrictions require holding tanks or where livewell and fish tank cleanup demand efficient solids removal.

• Marine holding tanks and onboard discharge systems
• RV black/gray water tanks and portable waste containers
• Household wastewater points with limited discharge access
• Livewells, fish tanks, and other applications needing maceration

Who is this for? The MARSOMGOR 12V macerator 18590-2092 is aimed at RV owners, boaters, and homeowners who need a compact, reliable waste pump that handles solids, fits tight plumbing, and includes safety features for unattended operation. It also suits installers and service technicians who want a durable replacement unit compatible with common macerator models.