Wash Down Pumps & Systems

What Are Marine Wash Down Pumps & Systems?

A boat wash down pump takes water from below the waterline and pumps it above deck to rinse off the deck, muddy anchors, or anything else onboard that needs a good cleaning. Whether you're cleaning up your cockpit after landing a big fish, rinsing off the muddy anchor rode as it's raised by your windlass, or hosing off seagull indiscretions, a wash down system keeps your vessel presentable and protected.

A wash down system draws seawater or freshwater and delivers pressurized flow to clear mud, fish scales, and grit from decks, cockpits, and ground tackle. The wash down pump provides a lower volume of water and higher pressure than livewell pumps and is not designed to run for hours on end — making it a purpose-built tool for quick, effective cleanups after a day on the water.

Why a Dedicated Wash Down System Matters

Routinely cleaning your craft helps your boat maintain its value over time, and wash down pumps installed directly on the boat allow for easy access to water for hosing down decks, boating equipment, anchors, chains, skis, and anything else onboard. Raw water is unlimited and ideal for anchor mud and fish cleaning, while freshwater is gentler on finishes — and many boaters plumb both via a selector or manifold.

Key Considerations When Shopping

Wash down systems include a 12V DC pump with an integral pressure switch, a hose and nozzle, an inline filter, wiring, circuit protection, and connectors. Pump capacity is rated in gallons per minute (GPM); a diaphragm pump in the 3.4 to 5 GPM range meets the needs of most small and medium-sized boats, generally providing pressures in the 35–50 PSI range.

• Ignition Protection: Since most wash down pumps are mounted in the bilge, they must be ignition protected — meaning they're designed to prevent any sparks from the motor from escaping and igniting fuel vapors trapped in the bilge.
• Materials: The marine environment is hard on electrical equipment, so your pump must be made of materials that resist corrosion; most are constructed of polypropylene with stainless hardware and a sealed motor.
• Flow Rate & Pressure: Typically for wash down pumps, the higher the flow and the higher the pressure, the better. Too much pressure can damage paintwork and other surfaces; too little pressure won't shift the dirt.
• Accumulator Tanks: An optional accumulator tank installs downstream from the pump to smooth out water delivery and allow the pump to cycle on and off less frequently.

Top Brands in Wash Down Pumps & Systems

Groco is one of the most respected names in marine wash down pumps. The Maryland-based Groco has been making marine hardware since 1918. Groco's C Series wash down pumps provide reliable pressurized water on demand for deck wash, anchor wash, or multiple locations — and their rigid vane design delivers higher performance than comparable diaphragm or flexible impeller pumps.

Albin brings Scandinavian engineering to the marine wash down market. With roots dating back to 1928, Albin Pump Marine combines decades of engineering experience with modern innovation, offering a marine-dedicated product line designed for maximum durability, quiet operation, and corrosion resistance in saltwater environments. Their compact 12V wash down pumps deliver dependable performance on boats, campers, and other mobile setups, with a focus on durability, ease of use, and consistent pressure.

Seachoice is a trusted name for boaters seeking practical, ready-to-use marine accessories. Seachoice wash down components are designed with straightforward installation in mind, making them a popular choice for boat owners who want reliable on-deck water access without complex plumbing setups.