1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your SOBO Multifunctional Submersible Pump. This three-in-one device is designed for aquariums, offering efficient filtration, aeration, and water circulation to maintain a healthy aquatic environment.
2. Safety Information
- WARNING: Always disconnect the power supply before performing any installation, maintenance, or cleaning.
- WARNING: Ensure the pump is fully submerged in water during operation to prevent overheating and damage.
- WARNING: Do not operate the pump if the power cord or plug is damaged. Contact customer service for replacement.
- WARNING: Avoid applying excessive force during installation to prevent damage to components.
- WARNING: This product is not intended for use with non-potable water.
- Keep out of reach of children.
3. Package Contents
Please check the package to ensure all components are present:
- Submersible pump unit
- Filter basket / Intake strainer
- Water outlet pipe / Extension tubes
- Aeration tube / Air hose
- Suction cups
- Oil film remover attachment (may vary by model)

4. Setup Instructions
- Assemble the Pump: Attach the filter basket (intake strainer) to the bottom of the pump unit. Connect the desired length of water outlet pipe to the pump's outlet. If using the aeration function, connect the aeration tube to the air intake nozzle.
- Secure the Pump: Use the suction cups on the back of the pump to firmly attach it to the inside wall of your aquarium. Ensure the pump is positioned so it will be fully submerged when the aquarium is filled to the desired water level.
- Position Water Outlet: Direct the water outlet to create optimal water circulation and surface agitation. This helps with oxygen exchange and prevents stagnant areas.
- Oil Film Remover (if applicable): If your model includes an oil film remover, ensure it is correctly attached and positioned at the water surface.


5. Operating Instructions
- Ensure the pump is correctly assembled and securely mounted in the aquarium.
- Verify that the pump is fully submerged in water.
- Plug the pump into a suitable power outlet (Rated voltage: 220-240V). The pump will start operating immediately, providing filtration, water circulation, and aeration.
- Observe the water flow and aeration. Adjust the water outlet direction or aeration tube position as needed for optimal performance.
6. Maintenance
- Regular Cleaning: Disconnect the power supply. Remove the pump from the aquarium. Disassemble the filter basket and impeller cover. Clean the impeller, pump housing, and filter basket thoroughly to remove any debris, algae, or mineral buildup.
- Filter Media Replacement: Replace the filter cartridge or filter media regularly (e.g., monthly or as needed, depending on aquarium conditions and usage) to maintain effective filtration.
- Reassembly: Reassemble all components carefully, ensuring all seals are properly seated to prevent leaks.
7. Troubleshooting
- Low Water Flow:
- Check whether the filter cartridge or impeller is clogged with debris. Clean or replace as necessary.
- Pump Not Starting:
- Ensure the power cord is securely plugged in. Verify that the pump is fully submerged. Check for any blockages around the impeller that might prevent it from spinning.
- Leakage:
- Reinstall the unit, ensuring all connections are tight and the sealing ring (gasket) is properly in place and undamaged. Replace the sealing ring if it appears worn or damaged.
- Excessive Noise:
- Disconnect power and check the impeller for any foreign objects. Ensure the pump is securely mounted and not vibrating against the aquarium glass.
8. Specifications
| Model | Power | Rated Voltage | Flow | Head | Water Hose | Line Length | Size (CM) |
|---|---|---|---|---|---|---|---|
| WP-1660 | 20W | 220-240V | 1400L/h | 1.2M | 60CM | 110CM | 8.5 * 6 * 10.5 |
| WP-2660 | 30W | 220-240V | 2000L/h | 1.5M | 80CM | 110CM | 10 * 7 * 12 |
| WP-3660 | 40W | 220-240V | 2800L/h | 1.8M | 80CM | 110CM | 11 * 7.5 * 12.5 |
| WP-1990 | 15W | 220-240V | 1000L/h | 1.0M | 60CM | 110CM | 11 * 5.5 * 9 |
| WP-2990 | 25W | 220-240V | 1500L/h | 1.5M | 80CM | 110CM | 12 * 7 * 12 |
| WP-3990 | 35W | 220-240V | 2800L/h | 2.0M | 80CM | 110CM | 13 * 7 * 13 |
9. User Tips
- For optimal performance, ensure the pump is cleaned regularly, especially the impeller and filter media, to prevent debris buildup.
- The product may come with different plug types (EU, UK, AU, etc.). Please specify your required plug type when ordering if a conversion plug is needed.
- Always check the water level in your aquarium to ensure the pump remains fully submerged during operation.
10. Warranty and Support
- Warranty coverage applies to defects not caused by misuse or accidental damage.
- For any issues, questions, or assistance, please contact customer service.





