1. Introduction
This manual provides essential information for the safe and efficient operation of your Prostormer 1HP 3700GPH Submersible Sump Pump. This pump is designed for transferring clean or dirty water from various sources, including fresh water, mains water, and pool water. Key features include a powerful 1HP motor, a maximum flow rate of 3700 gallons per hour, durable stainless steel construction, and an integrated float switch for automatic operation.

Image: The Prostormer 1HP 3700GPH Submersible Sump Pump, featuring its orange base, stainless steel body, and attached float switch.
2. Safety Information
Always prioritize safety when operating electrical equipment. Read and understand all instructions before use. Ensure the power supply matches the pump's requirements. Do not operate the pump if the power cord or plug is damaged. Keep children and unauthorized personnel away from the operating area.
Attention:
This device is not suitable for continuous operation, such as for recirculation in ponds. Continuous use will significantly shorten the pump's life expectancy.
3. Product Features and Components
The Prostormer Sump Pump is engineered for ease of use and durability. It features an easy-grip handle for convenient transport, a robust stainless steel body to prevent damage, and a bottom suction design capable of removing water down to 2.5 inches from the surface.

Image: A close-up view highlighting the pump's easy-grip handle, stainless steel construction, and bottom suction design for efficient water removal.
The pump also comes with multiple outlet sizes to accommodate various hose types and flow rate requirements. The overall dimensions are compact for easy placement.

Image: An illustration showing the pump's dimensions (40cm/15.7 inches height, 22cm/8.7 inches width) and the various diameter outlet adapters (1 inch, 1-1/4 inch, 1-1/2 inch, 3/4 inch NPT).
4. Specifications
Refer to the table below for detailed technical specifications of the Prostormer 1HP 3700GPH Submersible Sump Pump:
| Feature | Specification |
|---|---|
| Power Supply | 120V~60Hz |
| Power Consumption | 1HP |
| Delivery Rate Max | 3700 GPH (61.67 Gallons Per Minute) |
| Delivery Height Max | 26 Feet |
| Immersion Depth Max | 23 Feet |
| Water Temperature Max | 35°C |
| Hose Connection | 1 inch, 1-1/4 inch, 1-1/2 inch (threaded end) |
| Foreign Bodies Up To | Dia. 35mm |
| Voltage | 120 Volts (AC) |
| Item Weight | 10.5 Pounds |
| Product Dimensions | 7.48"L x 8.66"W x 15.75"H |
| Material | Stainless Steel Water Pump |

Image: A graph illustrating the pump's performance curve, showing that higher flow rates correspond to lower pumping heights. A table of specifications is also included.
5. Setup
Before operating the pump, ensure proper setup to maximize efficiency and prevent damage:
- Attach Hose: Connect the appropriate diameter outlet adapter (1 inch, 1-1/4 inch, or 1-1/2 inch) to the pump's discharge port. Securely attach your discharge hose to the adapter. Choose the largest possible diameter for your hose to achieve the maximum flow rate.
- Positioning: Place the pump in the water to be drained. Ensure it is submerged at a slight angle initially to allow any trapped air to escape. This helps prevent airlocks and ensures the pump starts effectively.
- Float Switch: The pump features an automatic float switch. Ensure the float switch has sufficient space to move freely and activate/deactivate the pump as water levels change.
- Power Connection: Plug the pump into a grounded 120V~60Hz power outlet.

Image: A hand carefully lowering the Prostormer Sump Pump into a body of water, demonstrating the initial placement for operation.
Setup Video Guide
Video: This video demonstrates the setup and use of the Prostormer Sump Pump with a float switch for home and garden applications, including pool drainage.
6. Operating Instructions
Once the pump is set up, it will begin operating automatically when the water level rises and activates the float switch. The pump will continue to operate until the water level drops below the float switch's activation point, at which time it will automatically shut off.
- Ensure the pump is fully submerged during operation to prevent overheating.
- Monitor the discharge hose to ensure water is flowing freely and there are no kinks or blockages.
- For manual operation or to override the float switch, some models allow the float to be secured in an 'up' position. Refer to your specific model's instructions for details.

Image: The Prostormer Sump Pump actively pumping water from a muddy area, demonstrating its capability in dirty water conditions.
Application Video
Video: This video showcases the wide range of applications for the Prostormer Sump Pump, including use in aquariums, fountains, hydroponic systems, and indoor/outdoor ponds.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your sump pump:
- Cleaning: Periodically inspect and clean the inlet sieve to remove any debris, dirt, or abrasive particles that may reduce pumping capacity or cause blockages.
- Inspection: Check the pump body, power cord, and float switch for any signs of wear, damage, or corrosion. Replace any damaged components immediately.
- Storage: If storing the pump for an extended period, clean it thoroughly, drain all water, and store it in a dry, protected area.
8. Troubleshooting
If your pump encounters issues, refer to the following troubleshooting guide. For more complex problems, consult a qualified technician.
| Incident | Causes | Remedies |
|---|---|---|
| Pump does not start |
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| No flow |
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| Pump does not switch off |
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| Insufficient flow |
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| Pump switches off after short operating period |
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9. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or contact Prostormer customer service directly. Keep your proof of purchase for any warranty claims.





