Introduction
This manual provides instructions for the safe and efficient use of your SOBO WP-1990 Multifunction Submersible Pump. This pump is designed for use in aquariums, functioning as a water circulator, oxygenator, and for powering under-gravel filters and wave makers in both freshwater and saltwater environments.
Product Features
- 3-in-1 Multi-functions: Submersible pump, internal filter, and oxygen addition.
- Durable Construction: Made from high-quality ABS plastic.
- Suitable for both fresh and saltwater aquariums.
- Easy to clean design.
- Power: 15W
- Max Flow: 1000 L/H
- Max Head: 1 meter
- Voltage: 220-240V/50/60Hz
What's in the Box
- 1 Pcs Submersible Aquarium Pump
Safety Instructions
- Always disconnect the power supply before handling or performing maintenance on the pump.
- Ensure the pump is fully submerged in water during operation to prevent overheating.
- Do not operate the pump if the power cord or plug is damaged.
- This appliance is for indoor aquarium use only.
- Keep out of reach of children.
Setup
Follow these steps to set up your SOBO WP-1990 pump:
- Unpacking: Carefully remove all components from the packaging. Inspect for any damage.
- Assembly: Attach any necessary accessories such as the outlet nozzle, air intake tube, or filter media housing (if applicable). The pump components are designed for easy assembly.
- Placement: Position the pump inside your aquarium. Ensure it is fully submerged and securely attached to the aquarium wall using suction cups (if provided).
- Hose Connection: Connect the desired tubing to the pump's outlet for water circulation, filtration, or oxygenation.
- Power Connection: Once the pump is correctly positioned and submerged, connect the power cord to a suitable electrical outlet.
Image Description: An image showing the assembled pump with its various components.

Image: The SOBO WP-1990 submersible pump, fully assembled, showing the main pump body, extension tube, and water intake strainer at the bottom. The outlet nozzle and air intake are visible on the top part of the pump body.
Operating Instructions
The SOBO WP-1990 pump is designed for continuous operation.
- Starting the Pump: After setup, plug the pump into the power outlet. The pump should start immediately, circulating water.
- Water Circulation: The pump will create water movement, which is essential for distributing heat, nutrients, and oxygen throughout the aquarium.
- Oxygenation: If the air intake tube is connected, the pump will draw air into the water, increasing oxygen levels. Adjust the air flow as needed.
- Filtration (Internal Filter Function): If filter media is installed, the pump will draw water through it, providing mechanical and biological filtration.
- Powering Under-Gravel Filters/Wave Makers: The pump can be connected to under-gravel filter systems or wave makers to enhance their function.
Important: Always ensure the pump is fully submerged in water during operation. Running the pump dry can cause damage and void the warranty.
Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your pump.
- Disconnect Power: Always unplug the pump from the power source before performing any maintenance.
- Disassembly: Carefully remove the pump from the aquarium. Disassemble the pump components, including the impeller cover and impeller.
- Cleaning Impeller: Clean the impeller and its housing thoroughly. Algae, debris, and mineral deposits can accumulate and reduce efficiency. Use a small brush or cotton swab to remove any buildup.
- Cleaning Filter Media: If using the internal filter function, clean or replace the filter media as necessary. Rinse sponges with old aquarium water to preserve beneficial bacteria.
- Housing Cleaning: Clean the pump housing and intake strainer to ensure unrestricted water flow.
- Reassembly: Reassemble the pump components securely.
- Testing: Place the pump back into the aquarium, ensure it is fully submerged, and reconnect the power.
Frequency: Perform cleaning every 2-4 weeks, depending on aquarium conditions and water quality.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power; Impeller jammed; Damaged motor | Check power connection; Clean impeller; Contact support if motor is damaged |
| Reduced water flow | Clogged intake/impeller; Air in pump; Kinked tubing | Clean intake and impeller; Ensure pump is fully submerged; Straighten tubing |
| Excessive noise/vibration | Impeller dirty/damaged; Pump not securely placed; Air in pump | Clean or replace impeller; Secure pump; Ensure full submersion |
| Pump runs dry | Water level too low | Ensure pump is always fully submerged. Running dry will damage the pump. |
Specifications
| Specification | Value |
|---|---|
| Model Number | WP-1990 |
| Voltage | 220-240V / 50/60Hz |
| Power | 15W |
| Maximum Flow Rate | 1000 Liters Per Hour (L/H) |
| Maximum Lifting Height (H-Max) | 1 Meter |
| Caliber (Outlet Diameter) | 16mm |
| Material | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Product Dimensions (L x W x H) | 16L x 10W x 10H Centimeters |
| Item Weight | 460 Grams |
| Power Cord Length | 304.8 cm |
Warranty and Support
For warranty information or technical support, please contact the manufacturer or your retailer.
Manufacturer: ZAMAN AQUARIST
Manufacturer Contact Information: NO. 27, VENKAT NAGAR, SCHOOL Road, Kolathur, Chennai-600099; +91 7042836466
Importer Contact Information: Foodie Puppies Group, Plot number-18, Sector-06 Faridabad Haryana 121006 (India), Customer Care No: 9999678364, 9582911666
Please retain your purchase receipt for warranty claims.
Product Visuals
The following images provide a visual reference for the SOBO WP-1990 pump.

Image: A close-up view of the SOBO WP-1990 submersible pump, highlighting the main pump body with its air intake and water outlet connections. This image provides a detailed look at the upper section of the pump.
Video Information: No embeddable official product videos from the seller were found in the provided data.