Flojet 18555-000A Portable RV Waste Pump - Self-Priming Macerator

In this review the Flojet 18555-000A is assessed as a practical solution for RV owners who want a cleaner, faster way to empty holding tanks. The review focuses on its biggest selling point: a self-priming macerator that connects to a standard 3' sewer adapter and lets users pump black and gray water through a garden hose discharge port. For those who value portability and simple hookup options, this pump removes common hassles of sewer handling while meeting EPA sanitary guidance for RV use.

Key Features

• Self-priming macerator: Breaks down solids so black and gray water flow easily through a garden hose, reducing clogs and backflow risk.
• 3' sewer adapter compatibility: The pump housing connects to the common 3' sewer adapter for a straightforward attachment to RV waste outlets.
• 12 VDC motor: Runs from the vehicle electrical system or battery for on-site pumping without external AC power.
• Portable power options: Power leads include a plug that can be permanently wired or used with battery clips for temporary portable operation.
• Garden hose discharge port: Allows flexible discharge routing to a nearby sewer or disposal point using standard hose fittings.

Who It's For

The Flojet 18555-000A is best for RV owners and campers who frequently need to empty holding tanks and want a compact, self-contained macerator pump that minimizes manual handling. It is a solid choice for weekend RVers and seasonal travelers who use campgrounds with variable drain placements and need the flexibility of a garden hose discharge.

It is less suitable for users who require permanent plumbing upgrades or those on rigs that need specialized angle adapters for fit. Buyers who need AC-powered station equipment or have nonstandard tank outlets should check compatibility before purchase.

Pros & Cons

Pros

• Self-priming macerator design improves flow and reduces clogging when pumping waste.
• Connects to standard 3' sewer adapters for easy hookup at most RV waste points.
• 12 VDC motor and portable power lead options enable on-site use without shore power.
• Garden hose discharge port gives flexible routing options to reach disposal locations.

Cons

• Some RVs may require an angle adapter for proper fit, so measure fittings before ordering.
• Powering via battery clips for long sessions can be limited by battery capacity in the field.

Specifications

Brand	Flojet
Model	18555-000A
Motor Voltage	12 VDC
Discharge	Garden hose port
Inlet	Designed for standard 3' sewer adapter
Power Leads	Plug for permanent hookup or battery clip option

Our Verdict

The Flojet 18555-000A is a practical, value-oriented macerator pump for RV users who need a portable, self-priming solution to handle black and gray water. Its 12 VDC motor, garden hose discharge and standard sewer adapter compatibility make it a convenient upgrade for most campers, though buyers should confirm fit and consider battery capacity for extended portable use.

Frequently Asked Questions

Will this connect to my RV sewer outlet?
The pump housing is designed to attach to the standard 3' sewer adapter, but some vehicles may need an angle adapter for correct alignment.

How is it powered?
The unit uses a 12 VDC motor and includes power leads with a plug for permanent attachment; battery clips can be used for portable operation.

Can it handle both black and gray water?
Yes, the self-priming macerator is made to cleanly handle both black and gray water from holding tanks when used according to EPA sanitary guidance.