1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Leomru 1.5 HP Dual Voltage Pool Pump. Designed for both in-ground and above-ground swimming pools, hot tubs, thermal springs, and spas, this self-priming pump offers powerful water circulation with a maximum flow rate of 6498 GPH and a lifting capacity of up to 50.8 feet. It features a durable thermoplastic body, a copper wire motor, and dual voltage compatibility (115V or 230V) for versatile use.

Image: Leomru 1.5 HP Dual Voltage Pool Pump, showcasing its design and application near a swimming pool.
2. Important Safety Information
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in serious injury or property damage. Keep this manual for future reference.
- WARNING: Never turn on the pump without first filling it with water. Operating the pump dry will cause severe damage to the mechanical seal and impellers, voiding the warranty.
- Ensure the pump is filled with water before each operation.
- The pump is designed for use with swimming pools, hot tubs, thermal springs, and spas. It is not suitable for storable pools.
- The pump is IP55 waterproof rated, providing protection against dust and low-pressure water jets.
- The built-in automatic thermal overload protector safeguards the motor from overheating.
- All Leomru pool pump products are UL-certified, ensuring compliance with international safety standards.
- Ensure proper grounding. The pump comes with a 38.5-inch cord for safety and energy efficiency.
- Do not exceed water temperatures of 122°F (50°C).
3. Setup and Installation
3.1 Unpacking and Inspection
Carefully remove all components from the packaging. Verify that all parts listed in the packing list are present and undamaged. The package includes the pool pump, two 1.5-inch PVC pipe fittings, two 2-inch PVC pipe fittings, two 1.25-inch to 1.5-inch PVC hose fittings, and this manual.

Image: The Leomru pool pump shown with the included 1.5-inch, 2-inch, and 1.25-inch to 1.5-inch pipe and hose fittings.
3.2 Voltage Selection
Your Leomru pool pump is dual voltage compatible (115V or 230V). The voltage adjustment button is integrated into the pump motor. Before connecting the pump to power, ensure the voltage switch is set to match your electrical supply (115V or 230V). Incorrect voltage selection can damage the pump.

Image: Detailed view of the pump motor, highlighting the earthing terminal and the voltage specification switch for 110-120V or 220-240V operation.
3.3 Plumbing Connections
The pump comes with female and slip union connections for tool-free installation. Use the appropriate PVC pipe fittings (1.5-inch or 2-inch) or PVC hose fittings (1.25-inch to 1.5-inch) to connect the pump to your pool's plumbing system. Ensure all connections are secure and watertight to prevent leaks and maintain optimal performance.

Image: Technical diagram illustrating the inner and outer diameters of the various pipe adapters and how they connect to the pump and different pipe sizes.
4. Operating Instructions
4.1 Priming the Pump
Before starting the pump for the first time, or after the pump has been drained, it is crucial to prime it. Remove the transparent lid of the strainer basket and fill the basket and pump housing with water until it overflows. Replace the lid securely. This ensures the pump does not run dry, which can cause significant damage.
4.2 Starting the Pump
Once primed and all connections are secure, connect the pump to the appropriate power supply. The pump will begin to operate, circulating water. The advanced impeller design ensures a maximum speed of 3450 revolutions per minute (r/m) and a stable flow output.

Image: A visual representation of the pump's operation, showing dirty water entering the inlet and clean water exiting the outlet, with a flow rate of 6500 GPH.
5. Maintenance
Regular maintenance ensures the longevity and efficient performance of your pool pump.
5.1 Cleaning the Strainer Basket
The pump is equipped with an extra-large, detachable strainer basket designed to capture debris and protect the pump's internal components. The see-through lid allows for easy visual inspection of the basket's contents. When the basket appears full, or flow rate decreases, turn off the pump, remove the lid, empty the basket, and rinse it thoroughly. Reinstall the basket and secure the lid before restarting the pump.

Image: A detailed view of the pump's visualization lid, showing the filter basket inside and emphasizing its role in protecting against large particles.
5.2 Draining the Pump
For winterization or extended periods of non-use, the pump features a convenient drain plug at the bottom. Turn off the pump, disconnect power, and open the drain plug to discharge any remaining water. This prevents freezing damage and helps maintain the pump's integrity.

Image: The pump highlighting its IP55 rating and the location of the drain plug for easy water discharge after use.
6. Troubleshooting
This section provides solutions to common issues you might encounter with your pool pump.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power; Incorrect voltage setting; Thermal overload tripped | Check power supply and circuit breaker; Verify voltage switch setting; Allow pump to cool down and reset. |
| Low water flow or no prime | Strainer basket clogged; Air leak in suction line; Insufficient water in pump; Impeller clogged | Clean strainer basket; Check all connections for air leaks; Prime the pump with water; Inspect impeller for debris. |
| Pump is noisy | Air in system; Cavitation; Worn bearings | Bleed air from system; Ensure adequate water supply to pump; Contact customer support if noise persists. |
| Water leaking from pump | Loose connections; Damaged O-rings or seals | Tighten all plumbing connections; Inspect and replace O-rings or seals if damaged. |
7. Specifications
Detailed technical specifications for the Leomru 1.5 HP Dual Voltage Pool Pump.
| Feature | Specification |
|---|---|
| Brand | Leomru |
| Model Number | LM0042 |
| Style | 1.5 HP Dual Voltage |
| Power Source | Electric |
| Wattage | 1100 watts |
| Voltage | 115V / 230V (Dual Voltage) |
| Maximum Flow Rate | 6498 GPH (108.33 Gallons Per Minute) |
| Maximum Lifting Height | 50.8 Feet |
| Material | Copper Motor, PP plastic, Stainless Steel |
| Color | Black |
| Product Dimensions | 22.2 x 11.4 x 6.9 inches |
| IP Rating | IP55 |
| UPC | 791137636360 |

Image: Overview of the Leomru pool pump with key dimensions indicated: 22.2 inches length, 11.4 inches height, and 9.6 inches width.

Image: A performance curve graph illustrating the relationship between head (PSI/meters/feet) and flow rate (GPM/l/min/m³/h) for different pump models, including the 1.5 HP (J11501) and 2 HP (J15001) versions.
8. Warranty and Support
For specific warranty details and terms, please refer to the warranty card included with your product or contact Leomru customer support directly. Keep your proof of purchase for any warranty claims.
8.1 Customer Support
If you have any questions, require technical assistance, or need to report an issue, please contact Leomru customer support. Contact information can typically be found on the product packaging or the official Leomru website.