hzhdven 12V Macerator Pump for RV & Boat — 12 GPM, 3" Outlet, Garden-Hose Rinse Port

hzhdven's 12V portable macerator pump rapidly grinds and pumps RV and boat waste through 3" outlets, emptying tanks quickly and rinsing residue with a garden-hose discharge port.

If you need a reliable, compact solution to empty black-water or gray-water holding tanks away from standard dump stations, this 12V macerator pump is built for that task. It combines a high-flow macerator impeller, a garden-hose rinse port, and simple power connections to let RVers, boaters, and campsite users pump waste farther and cleaner than gravity alone permits.

How fast and far can this pump move wastewater?

The unit delivers up to 12 gallons per minute (about 45 liters per minute) and produces enough pressure for vertical lifts up to roughly 10–14 feet depending on hose setup. That flow rate typically empties a 150 L tank in about five minutes, making dumping operations quick and efficient compared with slow gravity drains.

• Maximum flow: 12 GPM (≈45 LPM)
• Vertical lift capability: up to ~10–14 feet with correct discharge hose
• Designed for 3-inch RV waste outlets for direct connection
• Garden-hose discharge port for rinsing and convenient cleanout

What prevents clogs and keeps the pump running smoothly?

This macerator uses dual stainless-steel cutter blades to chop solids into very small particles, dramatically reducing the chance of blockages in hoses or downstream disposal lines. It also includes a self-cleaning rinse path and a flow-control switch for the garden-hose outlet to flush residues after pumping.

• Dual 4-blade stainless cutters shred solids to small particles
• 25mm outlet with garden-hose connector for rinsing
• Flow-control switch for controlled fresh-water flushing
• Maintenance notes: clear jams only when power is disconnected

How durable and safe is the motor during repeated use?

The pump is driven by an all-copper motor with sealed bearings for quieter, more efficient operation and longer life. Built-in thermal overload and dry-run protection shut the motor off when overheated or starved of liquid, and it will restart only after conditions are safe.

• Heavy-duty all-copper motor with precision bearings
• Thermal overload and dry-run protection for longevity
• Low-noise operation suitable for campsites and marinas
• Recommended: allow cool-down and check cause before restarting

What connections and accessories are included for quick setup?

The pump is supplied with both a 7-foot cigarette lighter cable and an 11.4-inch alligator-clip cable for immediate 12V hookup to most RV battery systems. It is configured for 3" waste outlets and includes a quick-release fitting for fast attachment and removal.

• 7 ft cigarette-lighter cable for simple plug-in power
• Alligator-clip cable for direct battery connection
• Quick-release coupling for 3" RV waste outlets
• Garden-hose rinse port and flow control for tank cleaning

Who is this for: The hzhdven 12V macerator pump is aimed at RV owners, liveaboard boaters, and outdoor enthusiasts who need a portable, faster, and cleaner way to empty holding tanks where conventional dump access is limited. It's also useful for winterization kits and campsite support equipment. Users should have a 3-inch RV outlet and follow safe operation practices: never run dry, avoid leaving powered and idle long-term, and always disconnect power before clearing jams. Backed by a three-year warranty and responsive support, this pump is a practical upgrade for mobile wastewater management.