Introduction
This manual provides detailed instructions for the safe and efficient operation of your Knifel 200GPH-AT Submersible Pump. Designed for various water circulation applications, including fountains, hydroponics, ponds, and aquariums, this pump features an auto-shut-off mechanism for enhanced safety and longevity. Please read this manual thoroughly before installation and use.
Safety Information
- Always disconnect the pump from the power supply before handling, cleaning, or performing any maintenance.
- Ensure the pump is fully submerged in water during operation to prevent overheating and damage.
- Do not operate the pump if the power cord or plug is damaged.
- This pump is designed for fresh water use only. Do not use with flammable liquids or corrosive chemicals.
- Keep children and pets away from the pump and water feature during operation.
- Ensure the electrical outlet is properly grounded and protected by a Ground Fault Circuit Interrupter (GFCI).
Product Features
- Quality & Ultra Quiet: Constructed with a high-quality rotor and copper for quiet operation and extended service life.
- AUTO-SHUT-OFF & Safe: Features an automatic shut-off system that activates when water levels are low, preventing dry burning and ensuring safety. The pump restarts automatically once water is added.
- Detachable & Cleanable: Designed for easy disassembly without tools, making cleaning and maintenance simple.
- Water Flow Control: An adjustable knob allows for precise control of the water flow rate.
- Maximum Flow Rate: 200 GPH (750 L/H).
- Maximum Lifting Height: 5.2 feet.
- Waterproof Rating: IPX8.
Figure 1: Automatic Shut-Off System. The pump detects low water levels and powers off to prevent damage, restarting when water is replenished.
Figure 2: Pure Copper Rotor. This component contributes to the pump's quiet operation and extended lifespan.
Setup Instructions
- Choose Nozzle: Select the appropriate nozzle attachment (1/2" or 1/3") based on your desired water flow and lift height. The smaller nozzle typically provides a higher, more focused stream.
- Attach Hose: Connect your water hose or tubing to the selected nozzle.
- Position Pump: Place the pump securely at the bottom of your fountain, pond, aquarium, or hydroponic system. The suction cups on the base help to keep it in place. Ensure the pump is fully submerged in water.
- Connect Power: Plug the pump into a properly grounded electrical outlet with GFCI protection.
- Adjust Flow: Use the adjustable knob on the pump to set your desired water flow rate.
Figure 3: Pump Dimensions and Nozzle Sizes. Choose the correct nozzle for your application.
Figure 4: Adjustable Water Flow. The pump allows for customization of water output and lift.
Video 1: Knifel Water Fountain Pump Demonstration. This video shows the pump's installation and operation in a water feature, demonstrating its adjustable flow and various applications.
Operating Instructions
- Ensure the pump is always fully submerged in water during operation.
- Monitor water levels regularly, especially in outdoor applications, to prevent the auto-shut-off feature from engaging due to evaporation or splashing.
- The auto-shut-off feature will automatically turn off the pump if the water level becomes too low, protecting the motor from dry burning. It will resume operation once sufficient water is added.
- Adjust the flow rate as needed using the control knob.
Maintenance
- Regular Cleaning: Disconnect power before cleaning. The pump is designed for easy disassembly without tools. Regularly clean the impeller and internal components to prevent mineral buildup and debris accumulation, which can reduce performance and lifespan.
- Check for Blockages: Periodically inspect the intake screen and nozzle for any blockages. Clear any debris to maintain optimal flow.
- Winter Storage: In colder climates, remove the pump from the water feature before freezing temperatures. Clean it thoroughly and store it in a dry, frost-free location.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump not operating | No power; Auto-shut-off activated; Impeller jammed. | Check power connection and GFCI. Ensure water level is adequate. Disconnect power, disassemble, and clean impeller. |
| Reduced water flow | Clogged intake screen or nozzle; Mineral buildup on impeller. | Clean intake screen and nozzle. Disassemble and clean impeller and pump housing. |
| Pump making unusual noise | Debris in impeller; Pump not fully submerged. | Disconnect power and clear any debris from the impeller. Ensure pump is fully submerged. |
Specifications
| Specification | Value |
|---|---|
| Brand | Knifel |
| Model Number | AT-200 |
| Color | Black |
| Material | Plastic |
| Product Dimensions | 3"L x 2"W x 3.2"H |
| Power Source | Corded Electric |
| Item Weight | 13.6 ounces |
| Maximum Flow Rate | 200 GPH (750 Liters Per Hour) |
| Maximum Lifting Height | 5.2 Feet |
| Voltage | 110 Volts |
| Waterproof Rating | IPX8 |
Figure 5: Versatile Applications. The pump is suitable for a wide range of water features.
Warranty and Support
Knifel products are designed for reliability and performance. For specific warranty details and customer support, please refer to the product packaging or contact Knifel customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.