All the pumps in our test are marketed for raw-water washdown systems, but each can be used in different applications, like fresh water systems.

Fish blood, seagull droppings, and mud: You've got to get them off the deck and fittings quickly, or they'll dry out and become harder to clean once you're back at the dock. A high-pressure washdown system will allow you to do just that.

Like many of the products we test at Practical Sailor, high-pressure water pumps live in the bowels of a boat. They are expected to function when called to duty and generally don't get much thought or maintenance until they require replacement or repair. When that time comes, or you're adding a washdown system to your boat, you'll want to choose a pump that reliably meets your needs and…