AQUASTRONG ESU100PM
Aquastrong 1 HP Submersible Utility Pump Instruction Manual
Model: ESU100PM | Brand: AQUASTRONG
Introduction
This manual provides detailed instructions for the safe and efficient operation, installation, and maintenance of your Aquastrong 1 HP Submersible Utility Pump. Designed for high-flow water removal, this pump is ideal for various applications including draining swimming pools, garden ponds, basements, and window wells. Please read this manual thoroughly before use to ensure proper function and longevity of your pump.

Image: The Aquastrong 1 HP Submersible Utility Pump with its discharge adapter.
Safety Information
Always adhere to the following safety guidelines to prevent injury or damage to the pump:
- Ensure the pump is always fully immersed in water during operation to prevent dry running, which can cause motor burnout.
- Do not use the pump for brine, flammable, explosive, or corrosive liquids.
- Do not lift the pump by its power cord or by ropes attached to the power cord. Always use the integrated handle.
- Ensure no water is left in the pump if it will be stored in temperatures below 32°F (0°C) to prevent freezing damage.
- The pump operates on 115 Volts AC. Ensure your power source matches this requirement.
- The 10ft UL power cord is designed for safety and convenience. Always use a grounded outlet.

Image: Important safety warnings regarding dry running, lifting, and pulling the power cable.
Product Overview and Components
The Aquastrong 1 HP Submersible Utility Pump is built with durable thermoplastic material for corrosion and abrasion resistance. Key components include:
- Portable Handle: For easy transport and deployment.
- 10 ft UL Power Cord: Provides ample reach and safety.
- Split Capacitor Motor: Powerful 1 HP motor for efficient water removal.
- 1-1/4" NPT Discharge: Standard connection for various hoses.
- Hose Adapters: Includes 1-1/2'' elbow adapter and snap coupling adapter for 3/4'', 1'', or 1-1/4'' hoses.
- Bottom Suction Design: Allows for water removal down to 1/5 inch from the surface and handles solids up to 1/5 inch.
- Built-in Thermal Overload Protector: Prevents motor damage from overheating.

Image: Labeled diagram showing the main components of the Aquastrong pump.
Specifications
| Feature | Specification |
|---|---|
| Brand | AQUASTRONG |
| Model Number | ESU100PM |
| Material | Thermoplastic |
| Horsepower | 1 HP |
| Maximum Flow Rate | 4500 GPH (75 Gallons Per Minute) |
| Maximum Lifting Height | 30 Feet |
| Voltage | 115 Volts |
| Power Source | AC |
| Product Dimensions (L x W x H) | 6.3"L x 9.85"W x 11.03"H |
| Item Weight | 8.51 Pounds |
| Max. Solid Particle Size | 1/5 inch |
| Power Cord Length | 10 ft |

Image: Table illustrating the output flow rate at various total head heights.
Setup Instructions
- Choose Discharge Hose: Select a suitable discharge hose. The pump comes with a 1-1/4'' NPT discharge and includes adapters for 1-1/2'' elbow, and snap coupling adapters for 3/4'', 1'', or 1-1/4'' hoses. The snap coupling adapter can be cut to fit different hose sizes.
- Attach Adapter: Securely attach the appropriate hose adapter to the pump's discharge outlet. For garden hoses, use the provided 3/4'' garden hose adapter.
- Connect Hose: Connect your discharge hose to the adapter. Ensure all connections are tight to prevent leaks. PTFE tape can be used on threaded connections for a better seal.
- Position Pump: Place the pump in the area to be drained, ensuring it is on a stable, level surface and fully submerged in the water. The bottom suction design allows for efficient water removal down to 1/5 inch.
- Power Connection: Plug the 10ft UL power cord into a grounded 115V AC electrical outlet. Ensure the outlet is protected by a Ground Fault Circuit Interrupter (GFCI) for added safety.

Image: Illustration of various hose adapter coupling options and how they can be cut to fit different hose sizes.

Image: Visual guide for installing different hose adapters, including 3/4", 1", and 1-1/4" NPT options.
Video: Official AQUASTRONG 1HP Utility Pump Manual video, demonstrating setup and operation.
Operating Instructions
- Initiate Operation: Once the pump is submerged and connected to power, it will begin pumping water. The pump is designed for continuous operation when plugged in.
- Monitor Water Level: The pump's bottom suction design allows it to remove water down to 1/5 inch. Monitor the water level to ensure the pump remains submerged during operation.
- Prevent Dry Running: The built-in thermal overload protector will automatically shut off the pump if it overheats due to dry running. If this occurs, unplug the pump, allow it to cool, and ensure it is fully submerged before restarting.
- Stop Operation: To stop the pump, simply unplug it from the power outlet.

Image: The Aquastrong pump in action, efficiently draining water from a pool.

Image: Simple diagram illustrating the "Plug in to play, unplug to stop" operation of the pump.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your pump:
- Cleaning: After each use, especially when pumping dirty water, rinse the pump thoroughly with clean water. Remove any debris that may have accumulated around the intake screen at the bottom of the pump.
- Inspection: Periodically inspect the power cord for any signs of damage (cuts, fraying). Check the discharge outlet and adapters for blockages or wear.
- Winter Storage: If storing the pump in an area where temperatures may drop below freezing, ensure all water is drained from the pump to prevent ice damage. Store in a dry, protected location.
- Thermal Overload Protector: The built-in thermal overload protector is a safety feature. If it activates frequently, it may indicate a blockage, dry running, or an issue with the power supply. Address the underlying cause before continued use.

Image: Diagram highlighting the lower suction base, which helps in draining water down to minimal levels.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start. | No power; Thermal overload activated; Impeller jammed. | Check power connection and GFCI. Allow pump to cool if overheated. Inspect and clear any debris from the impeller. |
| Pump runs but no water flows. | Air lock; Discharge hose kinked or blocked; Water level too low. | Ensure pump is fully submerged and tilted to release trapped air. Check hose for kinks or blockages. Ensure water level is sufficient for operation. |
| Reduced flow rate. | Partial blockage in intake or discharge; Worn impeller; Excessive head height. | Clean intake screen and check discharge hose for partial blockages. Refer to specifications for maximum lifting height. |
| Pump cycles on and off frequently. | Thermal overload activating; Insufficient water to maintain continuous operation. | Ensure pump is fully submerged. Check for dry running conditions. |
Warranty and Support
The Aquastrong 1 HP Submersible Utility Pump comes with a 2-year warranty, ensuring peace of mind regarding its durability and performance. The reinforced engineering thermoplastic housing is designed for long-lasting use and resistance to corrosion and abrasion.
For any inquiries, technical support, or assistance, please feel free to contact Aquastrong customer service. Our team is dedicated to providing professional support to keep your water system stable and worry-free.
Contact information can typically be found on the product packaging or the official Aquastrong website.

Image: Highlighting the durable and compact design of the pump, along with a "2 Years Warranty" badge.
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