1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your LIGHTEU Seaflo Automatic Bilge Pump, Model SFBP1-G2000-13B. This pump is designed for marine applications to automatically remove water from boat bilges. It features an integrated water level sensor for automatic activation and deactivation.
2. Safety Instructions
- Always disconnect power before installing, inspecting, or servicing the pump.
- Ensure proper fuse protection is installed in the power circuit. Refer to the specifications for recommended fuse size.
- This pump is designed for pumping water only. Do not use it for pumping oil, flammable liquids, or corrosive chemicals.
- Ensure all electrical connections are waterproof and properly insulated to prevent corrosion and short circuits.
- Mount the pump securely to prevent movement during operation.
- Keep hands and loose clothing clear of the pump intake and discharge during operation.
3. Product Overview and Components
The LIGHTEU Seaflo Automatic Bilge Pump consists of a motor, pump housing, impeller, and a removable strainer base. It includes an integrated check valve to prevent backflow and hidden air vents to prevent airlock.
Figure 1: Exploded view of LIGHTEU Seaflo Bilge Pump components. This image shows the disassembled components of the bilge pump, including the motor, pump housing, impeller, and removable strainer base. It highlights the check valve and the 1-1/8 inch (29mm) fitting.
Figure 2: LIGHTEU Seaflo Bilge Pump with included fittings. This image displays the assembled bilge pump alongside its discharge fittings, including a straight hose barb and a check valve.
4. Setup and Installation
4.1 Mounting
- Select the lowest point in the bilge where water collects.
- Securely mount the pump using appropriate fasteners through the base. Ensure the pump is level for optimal operation of the internal sensor.
4.2 Wiring
The pump operates on a 12V DC power supply. Proper wiring is critical for safety and functionality.
- Automatic Mode: Connect the brown and white wire to the positive (+) anode of your 12V power source. The black wire connects to the negative (-) cathode. In this configuration, the pump will operate automatically based on water level.
- Manual Mode: Connect the brown wire to the positive (+) anode of your 12V power source. The black wire connects to the negative (-) cathode. This configuration allows for manual control, typically via an external switch (not included).
- Ensure all connections are watertight and protected from corrosion.
4.3 Hose Connection
- Connect a 1-1/8 inch (29 mm) discharge hose to the pump's outlet nozzle.
- Route the hose upwards to a through-hull fitting, ensuring a continuous upward slope to prevent airlocks and backflow.
- The integrated check valve helps prevent water from flowing back into the bilge once the pump stops.
- The pump features hidden air vents in its body to assist in preventing airlock in challenging plumbing installations.
5. Operating Instructions
The Seaflo Automatic Bilge Pump is designed for hands-free operation when wired for automatic mode.
5.1 Automatic Operation
- When the water level in the bilge reaches approximately 4.5 cm (1.77 inches), the integrated sensor will activate the pump.
- The pump will run for 0.5 seconds and then check for water every 2.5 minutes.
- The pump will continue to operate until the water level drops to between 1 cm and 3 cm (0.39 to 1.18 inches), at which point it will automatically shut off.
Figure 3: Automatic operation cycle. This diagram shows the pump activating for 0.5 seconds when water reaches 3.8 cm (1.5 inches) and checking for water every 2.5 minutes. It stops when the water level drops to 2 cm (0.75 inches).
5.2 Manual Operation (if wired for manual control)
- If the pump is wired for manual operation (brown wire to positive), it will run continuously when the external switch is engaged.
- Ensure the pump is not run dry for extended periods, as this can cause damage.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your bilge pump.
- Cleaning the Strainer: The removable strainer base allows for easy cleaning. Periodically remove the base and clear any debris (leaves, hair, etc.) that may have accumulated and could obstruct the impeller or intake.
- Inspect Wiring: Regularly check all electrical connections for corrosion, fraying, or loose terminals. Ensure waterproof seals are intact.
- Check Hose: Inspect the discharge hose for kinks, blockages, or leaks.
- Test Operation: Periodically test the pump's automatic function by adding water to the bilge to ensure it activates and deactivates correctly.
7. Troubleshooting
If your bilge pump is not functioning as expected, refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not run | No power; Blown fuse; Loose wiring connection; Faulty pump motor | Check battery voltage; Replace fuse; Secure all electrical connections; Test pump directly with 12V power (if safe to do so) |
| Pump runs but no water is discharged | Clogged intake/strainer; Airlock in hose; Kinked or blocked discharge hose; Impeller damage | Clean strainer base; Clear airlock by temporarily disconnecting hose at highest point; Inspect and clear hose; Inspect impeller for damage |
| Pump runs continuously (in automatic mode) | Faulty water level sensor; Backflow through discharge hose; Debris interfering with sensor | Clean sensor area; Check check valve for proper function; Ensure discharge hose has continuous upward slope |
| Pump runs intermittently or weakly | Low battery voltage; Partial clog; Loose wiring | Charge battery; Clean strainer; Tighten connections |
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | SFBP1-G2000-13B |
| Voltage | 12V DC |
| Current Draw | 7.5 A |
| Flow Rate | 2000 GPH (47.3 Liters per minute) |
| Max Head Lift | 18 Feet (approx. 5.5 meters) |
| Hose Outlet Diameter | 1-1/8 inches (29 mm) |
| Activation Water Level | 4.5 cm (1.77 inches) |
| Deactivation Water Level | 1-3 cm (0.39-1.18 inches) |
| Material | Plastic |
| Dimensions (L x W x H) | Approx. 145mm x 85mm x 140mm (Refer to Figure 4 for detailed dimensions) |
| Weight | 760 grams |
Figure 4: Technical dimensions diagram of LIGHTEU Seaflo Bilge Pump. This diagram provides detailed measurements of the bilge pump, including height, width, and diameter, essential for installation planning.
9. Warranty and Support
For warranty information or technical support, please refer to the official invoice provided by LIGHTEU GmbH or contact your point of purchase. Keep your purchase receipt as proof of purchase.