1. Product Overview
The Gardena Clear Water Submersible Pump 7000/C Classic is designed for efficient pumping, draining, and transferring of clear to slightly contaminated water. It is suitable for applications such as emptying rain barrels or flooded basements.
Key features include:
- Powerful transfer and drainage: Up to 7,000 liters per hour flow rate.
- Stable operation: Integrated hose connection ensures pump stability.
- Automatic On/Off: Float switch for automatic operation based on water level, with continuous operation option.
- Flat suction: Drains residual water down to 5 mm.

2. Safety Information
WARNING: Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- Always disconnect the pump from the power supply before performing any maintenance or cleaning.
- Do not operate the pump if the power cable or plug is damaged.
- Ensure the electrical supply matches the voltage specified on the pump's rating label.
- Never lift or carry the pump by its power cable.
- The pump is designed for clear to slightly contaminated water with a maximum particle diameter of 5 mm. Do not use for highly abrasive liquids, corrosive chemicals, or flammable substances.
- Keep children and unauthorized persons away from the operating pump.
- The maximum liquid temperature for operation is 35°C.
3. Package Contents
Verify that all items are present upon unpacking:
- 1x Gardena Clear Water Submersible Pump 7000/C Classic
- 3x Individual hose adapters for 13 mm (1/2"), 16 mm (5/8"), 19 mm (3/4"), 25 mm (1"), 32 mm (5/4") hoses
4. Setup
4.1. Hose Connection
The pump features quick connectors for easy hose attachment. Select the appropriate adapter for your hose size (13 mm to 32 mm) and securely attach it to the pump's outlet.

4.2. Float Switch Adjustment
The float switch controls the automatic on/off function of the pump. Adjust the cable length of the float switch to set the desired water level for activation and deactivation. A shorter cable length will result in earlier activation and deactivation, while a longer cable allows for a wider range of water levels.

For continuous operation, the float switch can be secured in an upward position, ensuring the pump runs constantly regardless of the water level, until manually switched off or unplugged.

4.3. Placement
Place the pump on a stable, flat surface in the area to be drained. The integrated hose connection design helps maintain the pump's balance during operation.

5. Operating Instructions
Once the pump is set up and the hose is connected, plug the power cable into a suitable electrical outlet. The pump will begin operating according to the float switch setting.
- Automatic Mode: The pump will automatically switch on when the water level rises to activate the float switch and switch off when the water level drops below the set minimum.
- Continuous Operation: To run the pump continuously, secure the float switch in an upright position. The pump will then operate until unplugged or the power supply is cut.
- The pump can achieve flat suction down to 5 mm of residual water, ensuring thorough drainage.
- The maximum immersion depth for safe operation is 7 meters.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your pump.
- Cleaning: Disconnect the pump from the power supply. The quick connectors allow for easy opening of the pump to remove any blockages caused by dirt particles. Rinse the pump thoroughly with clean water after each use, especially if pumping slightly contaminated water.
- Inspection: Periodically inspect the power cable, plug, and pump housing for any signs of damage. Do not use the pump if any damage is detected.
- The condenser motor with thermal protection switch is designed to be quiet and maintenance-free, requiring no lubrication.
7. Troubleshooting
If you encounter issues with your Gardena pump, refer to the following common troubleshooting steps:
- Pump does not start:
- Check if the pump is properly plugged into a functioning power outlet.
- Verify the float switch position. In automatic mode, the water level must be high enough to activate the switch.
- Check for power outages or tripped circuit breakers.
- Pump runs but does not pump water:
- Ensure the pump is fully submerged in water.
- Check for blockages in the intake or discharge hose. Disconnect power before inspecting.
- Verify that the hose is not kinked or obstructed.
- Reduced pumping performance:
- Clean the pump intake and impeller area for any debris.
- Ensure the hose diameter is appropriate and not too restrictive.
- Pump stops unexpectedly:
- The thermal protection switch may have activated due to overheating. Allow the pump to cool down before restarting.
- In automatic mode, the water level may have dropped below the float switch's deactivation point.
If problems persist, contact Gardena customer support or a qualified service technician.
8. Technical Specifications
| Specification | Value |
|---|---|
| Model Number | 1661-20 |
| Rated Power | 300 W |
| Max. Flow Rate | 7,000 l/h |
| Max. Head | 5 m |
| Max. Pressure | 0.5 bar |
| Automatic Function | Float switch |
| Max. Immersion Depth | 7 m |
| Flat Suction (residual water) | Up to 5 mm |
| Max. Particle Diameter | 5 mm |
| Weight | 3.8 kg |
| Dimensions (L x W x H) | 24.5 x 21 x 33 cm |
| Power Cable Type | 10 m H05 RNF |
| Max. Liquid Temperature | 35°C |
| Threaded Connection | 41.9 mm (G 1 1/4 Inch) |
| Electrical Protection | IP X8 |
| Material | Plastic, Stainless Steel Shaft |
| Voltage | 230 Volts |
9. Warranty and Support
For warranty information and customer support, please refer to the official Gardena website or contact your local Gardena dealer. Keep your purchase receipt as proof of purchase.





