CRESTWAVE RV Macerator Pump 12V 144W — 12 GPM, 10FT Lift, SK5 Dual Blades, Complete Kit

When you need fast, clog-free dumping for motorhomes, travel trailers or marine holding tanks, the CRESTWAVE macerator combines a high-torque 144W copper motor with dual SK5 spiral blades to shred solids and push wastewater through hoses at up to 12 gallons per minute. Built for on-the-road convenience, this unit ships as a ready-to-install kit including power cord, fittings and accessories—so you can connect, prime and empty tanks without hauling a heavy portable cassette to the dump station.

How fast can this macerator empty my RV or boat tank?

This pump is engineered for speed: its 144W motor and SK5 steel impellers deliver a peak flow of about 12 GPM (45 LPM), allowing a typical 150L sewage tank to be cleared in under four minutes. Faster cycles mean less time at dump stations and fewer odors or spills during transfer.

• Typical emptying: under 4 minutes for a 150L tank
• Flow rate: 12 gallons per minute (45 LPM)
• Working pressure: up to 15 PSI for steady discharge

Will it handle long runs and lifts from low-mounted holding tanks?

Yes—CRESTWAVE’s self-priming design supports extended discharge distances and vertical lifts. The pump can lift wastewater up to 10 feet horizontally and priming suction reaches about 3 feet, which covers most RV and small-boat installations.

• Maximum lift: 10FT discharge capability
• Suction height: approximately 3FT for initial priming
• Includes 3/4" NPT fittings for common RV plumbing connections

How does the unit prevent clogs and protect the motor?

Dual four-blade SK5 high-carbon spiral impellers reduce solids below 15mm, preventing blockages in hoses and regulators. The motor uses pure copper windings and integrates thermal overload plus dry-run protection to avoid overheating and extend service life.

• Blade type: SK5 high-carbon steel, dual spiral impellers
• Particle reduction: crushes solids to under 15mm
• Motor safeguards: thermal overload and dry-run protection

What comes in the kit and how weatherproof is it?

The pump arrives as an all-in-one kit to simplify setup and maintenance. It includes a cigarette lighter power cord, adjustable metal clamps, NPT copper fittings, a garden hose adapter with valve, gloves and repair accessories. The housing meets IPX8 waterproofing and operates across a broad temperature range for year-round use.

• Included: 2.3M cigarette lighter cord, hose fittings, clamps, gloves, screwdriver
• Waterproof rating: IPX8 for wet while in use scenarios
• Operating temperatures: 41°F to 140°F (5°C to 60°C)

Who this is for: CRESTWAVE’s macerator is designed for RV owners, boaters and service professionals who need quick, reliable wastewater transfers without frequent manual intervention. It fits travel trailers, motorhomes, marine heads and portable tank setups—especially useful for users who regularly empty tanks at remote dump sites, perform winterization tasks, or prefer an in-vehicle solution that minimizes odor, spills and downtime. The included accessories and protective features make it a practical choice for DIY installers and technicians seeking a durable, easy-to-operate macerator pump backed by a 12-month manufacturing coverage plan.