Fresh Electric Drinking Water Pump systems in one form or another (even as simple as a bucket or a barrel with a cup on a string) have been on boats since man ventured far enough away from land to need liquid refreshment. These days, though, if your boat was designed for cruising, or with entertaining capabilities on board, chances are good you’ve got at least a basic manual or electric-powered water system on board.

　　And, like most systems on boats, it’s likely one that you’ll need to troubleshoot someday. To keep things simple we’re going to be talking about water systems with basic manual and electric pumps and a single fresh water tank. Systems with hot water heaters, sophisticated filters, and accumulator tanks add too many layers of complexity to discuss here, but bear in mind that simpler systems are always easier to troubleshoot and maintain.

　　Electric Fresh Water System: Pump Runs with No Water Flow

　　What’s the first and most obvious thing to check if you’ve opened a fresh water fixture on your boat and can hear the pump working, but find that no water is flowing? Make sure your water tank actually has water—you’d be surprised how many times it’s as simple as that. If you find the tank empty, fill it up and then try turning on the water (galley faucet, shower head, fresh water washdown, etc.) again.

　　Second, make sure that any valves in the water line haven’t been shut inadvertently. Often you’ll find one near any filter that’s been installed in the line near the tank. While you’re there, check the filter for obstruction.

　　If your water tank is full and the valves are open, but you’ve still got no water flow, it’s time to start working the problem from the water fixture back to the pump. First flip off the circuit breaker for the fresh water pump. Next, get underneath the fixture and remove the water supply hose by loosening the hose clamp(s) and pulling the hose off. You can be well-prepared for the possibility of a pressurized gush of water from the supply hose by wrapping a towel around the end of the hose as you pull it off.

     We offer all kinds of pump, such as Plastic Lotion Pump, please consult us if you have any questions.