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Marine Pumps – Bilge, Livewell, Washdown, Macerator & Freshwater
Shop our full selection of marine pumps covering every system on your boat that moves water — from keeping your bilge dry to keeping bait alive, washing down the deck, and managing waste and freshwater systems. Our lineup includes trusted brands across every pump type, so you can find the right match whether you’re replacing a failed pump or outfitting a new build.
Shop Marine Pumps by Brand
We carry marine pumps from four of the most established names in the industry: Rule, widely used across bilge, livewell, and aerator pumps with a strong reputation for reliability; Jabsco, known for washdown and general-purpose pumps built for both commercial and recreational use; Johnson Pump, offering a broad range spanning livewell, washdown, and general marine pump applications; and Attwood, recognized for innovative bilge pump technology designed to prevent air-lock and extend pump life. Not sure which brand or pump type fits your setup? See our guidance below or reach out to our team.
Bilge Pumps
A bilge pump removes water that collects in the lowest part of your hull, pumping it overboard through a thru-hull fitting — one of the most critical safety systems on any boat, since unchecked bilge water can lead to flooding. Bilge pumps commonly run on 12 or 24 volts and are available with a built-in automatic float switch or paired with a separate float switch for peace of mind when the boat is left unattended. One installation detail matters more than most: bilge pump discharge should never be routed below the waterline, since that can allow water to backfeed into the hull instead of draining out.
Livewell Pumps
A livewell pump does the opposite job of a bilge pump — instead of removing water, it draws fresh, oxygen-rich water from outside the hull and circulates it continuously into your livewell to keep bait and catch alive and healthy. Livewell pumps prioritize steady flow over high pressure, and different species need different flow rates — most livewells include adjustable outlet fittings, so it’s generally better to size up slightly on pump capacity and dial back flow with the valve than to undersize it.
Washdown Pumps
A washdown pump delivers pressurized water (measured in PSI) for rinsing off the deck, anchor, and gear after a day on the water. Unlike livewell pumps, washdown pumps are built for pressure rather than volume, and many boaters pair a washdown pump with a livewell pump in a combined kit since both draw from the same intake source.
Macerator Pumps
A macerator pump shreds solid waste before discharge, typically used with a boat’s holding tank system for waste management. These pumps are essential for proper waste handling and are subject to specific regulations regarding where and when discharge is permitted — check local and federal regulations for your cruising area.
Freshwater & General-Purpose Pumps
Freshwater pressure pumps supply your onboard cabin systems — showers, sinks, and faucets — typically in 12 or 24 volt configurations with a range of pressure and GPH ratings depending on your system’s demand. General-purpose pumps are versatile enough to handle multiple roles, including bilge drainage, freshwater transfer, water circulation, and washdown, making them a practical option for boats that need flexibility from a single pump.
Choosing the Right Capacity
Pump capacity is measured in GPH (Gallons Per Hour), and the right rating depends on your boat’s size and the specific job the pump is doing — larger boats generally need higher-capacity pumps across every category. When replacing an existing pump, avoid choosing a lower GPH rating than what was originally installed. Always match wire gauge and fuse rating to the manufacturer’s specifications to ensure safe, reliable performance.
Frequently Asked Questions
What’s the difference between a bilge pump and a livewell pump?
A bilge pump removes water from inside the hull and discharges it overboard. A livewell pump does the opposite — it draws fresh water from outside the hull into your livewell to keep bait and catch alive.
What GPH bilge pump do I need?
Capacity should match your boat’s size and typical water intake risk. When replacing a pump, don’t go below the GPH rating of the pump you’re replacing — many boaters prefer sizing up for extra safety margin.
Can one pump handle both washdown and livewell duties?
Not typically as the same unit, since washdown pumps are built for pressure and livewell pumps for steady volume — but many setups pair a dedicated washdown pump and livewell pump from a shared intake in a combined kit.
Where should bilge pump discharge be routed?
Always above the waterline. Routing discharge below the waterline can allow water to backfeed into the hull instead of draining out, defeating the pump’s purpose.
Shop Rule, Jabsco, Johnson Pump, and Attwood marine pumps below — bilge, livewell, washdown, macerator, and freshwater — to find the right pump for every system on your boat.