1. Introduction
Thank you for choosing the SOBO Amphibious Submersible Pump. This pump is designed for versatile use in both aquatic and terrestrial environments, making it ideal for fish tanks, fish ponds, and other circulating water applications. It features a silent operation, high lift, and strong flow, ensuring efficient water circulation and filtration.

2. Safety Information
- Always disconnect the power supply before performing any maintenance or installation.
- Ensure the pump is fully submerged when used in water to prevent overheating, unless specifically operating in a dry (terrestrial) setup.
- Do not operate the pump if the power cord or plug is damaged.
- Keep out of reach of children.
- This pump is designed for 220-240V, 50Hz power supply. Ensure your power source matches these specifications.
- Do not use the pump for purposes other than those specified.
3. Package Contents
Please check the packaging to ensure all components are present:
- SOBO Amphibious Submersible Pump
- Inlet/Outlet fittings (various sizes depending on model)
- User Manual (PDF available: View User Manual PDF)

4. Setup
The SOBO pump is designed for dual use, both submerged in water and externally (on land).
- Choose Location: Decide whether the pump will be submerged in your fish tank/pond or placed externally. The pump features suction cups for secure placement.
- Attach Inlet/Outlet: Select the appropriate inlet and outlet fittings for your hose size.
- Connect Hoses: Securely attach the water inlet and outlet hoses to the pump fittings.
- Position Pump: If submerging, place the pump at the desired depth in the water. Ensure it is stable using the suction cups. If using externally, place it on a stable, level surface near your water feature.
- Power Connection: Once the pump is securely positioned and all connections are made, plug the pump into a suitable 220-240V, 50Hz power outlet.

5. Operating
Once the pump is set up and connected to power, it will begin operating. The pump is designed for continuous use in appropriate environments.
- Silent Operation: The pump operates at a low noise level (approximately 30dB), ensuring a quiet environment.
- Amphibious Use: The pump can be used fully submerged in water or placed outside the water, drawing water through an inlet hose and discharging it through an outlet hose.
- Flow and Lift: The pump provides strong water flow and high lift capabilities, suitable for various aquatic setups.



6. Maintenance
Regular maintenance ensures optimal performance and longevity of your pump.
- Disconnect Power: Always unplug the pump from the power outlet before any cleaning or maintenance.
- Clean Filter Cotton: The pump has built-in filter cotton. Regularly remove the front cover and clean the filter cotton to prevent clogging and maintain efficient filtration.
- Clean Impeller: Over time, debris can accumulate around the impeller. Carefully remove the impeller cover and clean the impeller and its housing.
- Rinse Components: Rinse all removed components with clean water. Do not use harsh chemicals or abrasives.
- Reassemble: Reassemble the pump components in reverse order, ensuring all parts are securely fitted.
7. Troubleshooting
- Pump not starting:
- Check if the pump is properly plugged into a working power outlet.
- Ensure the voltage and frequency match the pump's specifications (220-240V, 50Hz).
- Inspect the power cord for any damage.
- Reduced flow or lift:
- Clean the filter cotton and impeller as described in the Maintenance section.
- Check for blockages in the inlet or outlet hoses.
- Ensure the water level is sufficient if the pump is submerged.
- Excessive noise:
- Check for any foreign objects obstructing the impeller.
- Ensure the pump is securely placed and not vibrating against surfaces.
- Verify that the pump is fully submerged if intended for submersible use.
8. Specifications
| Feature | Description |
|---|---|
| Brand | SOBO |
| Type | Amphibious Submersible Pump |
| Voltage | AC 220-240V |
| Frequency | 50Hz |
| Material | Rubber |
| Fixed Form | Sitting (with suction cups) |
| Battery Included | No |
| High-concerned chemical | None |
Model Specific Parameters

| Model | Power | Cable | Flow | Lift | Size (L*W*H) |
|---|---|---|---|---|---|
| WP-2200 | 35W | 160CM | 2000L/H | 200CM | 11.2*7.4*10CM |
| WP-4200 | 55W | 160CM | 3000L/H | 250CM | 13.9*9*11.9CM |
| WP-5200 | 75W | 270CM | 3500L/H | 300CM | 18*11.5*13CM |
| WP-7200 | 135W | 270CM | 5500L/H | 500CM | 20*12.5*15CM |
9. User Tips
- Voltage Compatibility: This pump is designed for 220-240V, 50Hz power systems. Please verify your local power supply before purchase and use. It is not compatible with 127V, 60Hz systems.
- Regular Cleaning: To maintain optimal performance and prevent issues like reduced flow or increased noise, regularly clean the pump's filter and impeller.
- Secure Placement: Utilize the integrated suction cups to firmly secure the pump, whether submerged or used externally, to minimize vibrations and ensure stable operation.
10. Warranty and Support
For warranty information and customer support, please refer to the seller's policies or contact the retailer where the product was purchased. Keep your proof of purchase for any warranty claims.





