1. Introduction
Thank you for choosing the Scheppach DWP400 Dirty Water Submersible Pump. This powerful combination pump is designed for efficient water removal and transfer, suitable for both clear and dirty water applications. It is ideal for garden irrigation, emptying pools, or draining ponds and flooded basements. Please read this manual carefully before operating the pump to ensure safe and optimal performance.
Image: The Scheppach DWP400 Dirty Water Submersible Pump, featuring its black and red housing with integrated handle and float switch.
2. Safety Instructions
Always observe the following safety precautions to prevent injury and damage to the pump:
- Ensure the power supply matches the specifications on the pump's rating plate.
- Do not operate the pump if the power cable or plug is damaged.
- Never lift or carry the pump by its power cable.
- Keep children and unauthorized persons away from the operating area.
- Do not pump flammable, explosive, or corrosive liquids.
- The maximum water temperature for operation is 35°C (95°F).
- Always disconnect the pump from the power supply before performing any maintenance or cleaning.
- The float switch must be able to move freely to ensure automatic shut-off and prevent dry running.
- The pump is equipped with overload protection to prevent overheating. If the pump stops, disconnect it from power and allow it to cool down before restarting.
3. Product Overview
Familiarize yourself with the main components of your Scheppach DWP400 pump:
- Pump Housing: Robust and impact-resistant.
- Motor: Powerful 400 W motor.
- Float Switch: Automatically switches the pump on/off based on water level. Can be fixed for continuous operation.
- Discharge Connection: G1" and G1½" connections for standard garden hoses.
- Base Plate: Designed to suck up dirt particles up to 30 mm.
Image: Diagram illustrating the applications of the Scheppach DWP400 pump, including garden irrigation, pool drainage, and pond emptying.
Image: Diagram highlighting the benefits of the Scheppach DWP400 pump, such as suitability for clear and dirty water, versatile use from garden irrigation to basement dewatering, and high flow rate for managing large water volumes quickly.
4. Setup
- Unpacking: Carefully remove the pump and all accessories from the packaging. Check for any damage.
- Hose Connection: Attach a suitable hose (G1" or G1½") to the discharge connection. Use a quick coupling for easy attachment. Ensure the connection is secure to prevent leaks.
- Positioning: Place the pump on a stable, level surface in the water. Ensure the pump is fully submerged and not resting on soft sediment that could block the intake.
- Float Switch Adjustment: Ensure the float switch has enough space to move freely. Its position determines the automatic on/off levels. For continuous operation, the float switch can be fixed in an upward position.
- Power Connection: Connect the pump to a grounded power outlet (230 V AC).
Image: Close-up view of the Scheppach DWP400 pump showing the hose connection point (G1½" and G1") with a quick coupling, ready for a standard garden hose.
5. Operating
- Automatic Operation:
- Ensure the float switch is free to move.
- When the water level rises, the float switch will activate the pump.
- When the water level drops to a certain point, the float switch will deactivate the pump, preventing dry running.
- Manual/Continuous Operation:
- To operate the pump continuously, fix the float switch in the upward position using the integrated holder.
- Monitor the water level closely during manual operation to prevent the pump from running dry, which can cause damage.
- Starting the Pump: Once connected to power and submerged, the pump will start automatically if the float switch is in the "on" position (or fixed for continuous operation).
- Stopping the Pump: In automatic mode, the pump stops when the water level drops. In manual mode, disconnect the power supply to stop the pump.
Image: Close-up of the Scheppach DWP400 pump's float switch, which automatically switches the pump off and protects against dry running.
Image: The Scheppach DWP400 pump submerged and operating in a pond, with a green hose attached, demonstrating its use in a natural water environment.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your pump:
- Cleaning: After each use, especially with dirty water, rinse the pump thoroughly with clean water. This prevents sediment buildup.
- Intake Area: Regularly check the intake area on the base plate for blockages (e.g., leaves, debris). Clear any obstructions to maintain optimal flow.
- Float Switch: Ensure the float switch is clean and moves freely.
- Storage: If storing for an extended period, clean the pump, drain all water, and store it in a dry, frost-free location.
- Cable Inspection: Periodically inspect the power cable and plug for any signs of damage. Do not use the pump if damage is found.
Image: Close-up view of the Scheppach DWP400 pump's base plate, designed to suck up dirt particles up to 30 mm in size.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start. | No power supply; Float switch not activated; Overload protection tripped. | Check power connection; Ensure float switch is free and in "on" position; Disconnect power, allow pump to cool, then restart. |
| Pump runs but no water is pumped or flow is weak. | Intake blocked; Hose kinked or blocked; Air in pump; Water level too low. | Clean intake area; Check hose for obstructions; Submerge pump fully to prime; Ensure sufficient water level. |
| Pump stops unexpectedly. | Overload protection tripped; Float switch deactivated (water level too low). | Allow pump to cool down; Check water level and float switch position. |
| Unusual noise during operation. | Debris in pump; Pump running dry. | Disconnect power, inspect and clear debris; Ensure pump is fully submerged. |
8. Specifications
| Feature | Value |
|---|---|
| Model | DWP400 (5909513901) |
| Power | 400 W |
| Voltage | 230 V (AC) |
| Max. Flow Rate | 9000 L/h |
| Max. Head Height | 6 m |
| Max. Immersion Depth | 7 m |
| Max. Particle Size | 30 mm |
| Max. Water Temperature | 35°C |
| Pump Pressure | 0.6 bar |
| Product Dimensions (L x W x H) | 30 x 15 x 42 cm |
| Item Weight | 3.6 kg |
| Discharge Connections | G1" and G1½" |
Image: Visual representation of key specifications: Max. Flow Rate 9000 L/h, Max. Head Height 6m, Max. Water Temperature 35°C, Max. Immersion Depth 7m.
Image: Visual representation of motor power (400 W) and maximum particle size (30 mm) for the Scheppach DWP400 pump.
9. Warranty & Support
Scheppach products are manufactured with high-quality materials and undergo strict quality control. In the unlikely event of a defect, please refer to your purchase documentation for warranty terms and conditions. For technical support, spare parts, or service inquiries, please contact your authorized Scheppach dealer or visit the official Scheppach website for contact information.
Please have your model number (DWP400) and serial number (if applicable) ready when contacting support.
