Attwood Self Priming Washdown Pump

The Attwood Self Priming Washdown Pump is purpose-built for serious boaters who demand reliable deck and engine washdown capability without complicated setup. After years on the water, any experienced captain knows that corrosion and salt spray are relentless enemies—and a quality washdown pump is essential maintenance equipment. This pump is designed for boat owners, fishing charter operators, and marine enthusiasts who need rapid freshwater circulation for rinsing salt, algae, and debris from hulls, decks, and engine compartments. The self-priming design eliminates the frustration of manual priming, making it ready to work immediately when power is applied.

The self-priming mechanism is the engineering advantage that separates capable washdown systems from marginal ones. Unlike standard transfer pumps that require manual priming or complex pre-fill procedures, this Attwood unit automatically builds sufficient suction to draw water from through-hull intakes, sea chests, or freshwater tanks on first activation. The compact footprint—just 6 x 5 x 8 inches and weighing only 6 pounds—allows flexible mounting in engine bays, lazarettes, or cabin spaces where deck space is precious. The durable construction and proven Attwood reliability mean the pump will handle the thermal cycling and vibration of boat operation without leaks or cavitation issues that plague cheaper alternatives.

This pump excels for both routine maintenance and emergency situations—whether you're rinsing down after a coastal run, decontaminating after exposure to questionable water, or managing bilge cleanup. Installation pairs best with 1/2-inch or 3/4-inch hose configurations and standard 12V marine electrical systems. The pump's output volume and pressure profile suit deck wash stations, engine flushing kits, and auxiliary freshwater distribution. For fishing boats, commercial vessels, and cruising sailboats, the Attwood Self Priming Washdown Pump represents the kind of unglamorous but absolutely vital equipment that keeps hulls protected and engines healthy across thousands of operating hours.