Product Overview
This manual provides essential information for the safe and effective use of your LANCHEZ 1.5 HP Submersible Sewage/Effluent Pump. Designed for heavy-duty applications, this pump is suitable for transferring residential sewage and effluent wastewater from sumps, basements, and septic tanks. The pump features a robust cast iron construction, a powerful 1.5 HP PSC motor, and an automatic tethered float switch for reliable operation.

A black, heavy-duty submersible sewage pump with a tethered float switch and power cords.
Technical Specifications
| Brand | LANCHEZ |
| Model Number | LZ-Q1000226MRF |
| Horsepower | 1.5 HP |
| Maximum Flow Rate | 4300 Gallons Per Hour (GPH) / 72 Gallons Per Minute |
| Maximum Lifting Height | 53 Feet |
| Voltage | 115 Volts |
| Power Source | AC |
| Discharge Size | 2" NPT |
| Material | Cast Iron |
| Waterproof Rating | IPX8 |
| Power Cord Length | 10 Feet |
| Item Weight | 32.1 pounds |
| Product Dimensions | 10.08"L x 8.27"W x 11.02"H |

An image displaying key technical parameters of the pump, including Max. Head 53FT, Max. Flow Rate 4300GPH, Outlet Size NPT2", Power Cord 10FT, Low Noise <60 dB, Waterproof IPX8, Energy saving PSC motor, Overheating protection, Mechanically sealed, No maintenance.

A graph showing the pump's output flow rate (GPH) at various total head heights (FT), along with a diagram illustrating the pump's dimensions (11.02 inches height, 10.08 inches width).
Key Components
- 1.5 HP PSC Motor: Provides powerful performance for high flow and lift.
- Heavy-Duty Cast Iron Casing: Ensures durability and corrosion resistance, suitable for demanding environments.
- Non-Clog Vortex Impeller: Designed to efficiently handle solids up to 3/4 inch without clogging.
- Automatic Tethered Float Switch: Activates and deactivates the pump based on preset water levels, enabling hands-free operation.
- 2-inch NPT Discharge: Standard threaded connection for easy and secure attachment of discharge piping.
- 10-foot Power Cord: Provides ample reach and flexibility for various installation setups.
- Integrated Handle: A sturdy ring handle on top allows for easy lifting and positioning of the pump.

A diagram illustrating the internal and external components of the pump, including the heavy-duty cast iron housing, copper wire motor, non-clog vortex impeller, piggyback tether float switch, oil-filled construction, and power cord connections.
Installation Instructions
- Placement: Ensure the pump is placed on a flat, stable surface in the sump basin or area where water needs to be removed. Avoid placing it directly on soft sediment.
- Discharge Connection: Connect a properly sized water hose or PVC pipe to the 2-inch NPT discharge port. Ensure a tight, leak-free connection to prevent backflow.
- Float Switch Adjustment: The tethered float switch can be adjusted to set the desired ON/OFF water levels. The pump automatically starts when the water level reaches approximately 14.17 inches and stops when it drops to 4.72 inches. Adjust the float length as needed for your specific application.
- Power Connection: Plug the pump into a grounded electrical outlet. Ensure the power cord is not strained or damaged.

An illustration of the submersible pump in a sump basin, indicating the automatic ON water level at 14.2 inches and OFF water level at 4.72 inches. It also shows various types of solids the pump can handle.

A visual guide detailing three steps for operating the pump: connecting a water hose, placing the pump, and selecting between auto or manual mode using the power plugs.
Official product video demonstrating the LANCHEZ 1.5 HP Submersible Sewage/Effluent Pump's features, including its heavy-duty cast iron construction, 2-inch NPT discharge, and operation in both manual and automatic modes, showcasing its powerful water transfer capabilities.
Operating Modes
The pump offers both automatic and manual operation modes through its piggy-back float switch design.
Automatic Mode
For automatic operation, ensure the float switch plug is connected to the pump's power cord, and then plug the combined unit into a grounded electrical outlet. The pump will automatically start when the water level rises to approximately 14.17 inches and stop when it drops to 4.72 inches.
Manual Mode
To operate the pump continuously, bypass the float switch by plugging the pump's power cord directly into the electrical outlet. This mode is useful for testing or when continuous pumping is required regardless of water level. Always monitor the pump during manual operation to prevent dry running.

A detailed view of the pump's 2-inch NPT discharge port and the piggy-back plug system for the float switch, demonstrating how to switch between automatic and manual operation modes.
Maintenance and Care
Regular maintenance ensures the longevity and optimal performance of your pump.
- Regular Cleaning: Periodically remove the pump from the sump and clean any accumulated debris from the impeller and intake area. This prevents blockages and maintains efficiency.
- Air Release Valve: Ensure the air release valve is clear and unobstructed to prevent air locks, which can hinder pumping.
- Winterization: In low-temperature environments, ensure the pump is fully submerged and insulated to prevent freezing. Freezing can cause severe damage to the pump.
- Power Cord Inspection: Regularly inspect the power cord for any signs of damage, cuts, or fraying. Warning: Do not pull the pump by its power cord, as this may cause damage to the cord and internal connections. Use the integrated handle or a rope attached to it for lifting.
- Float Switch Check: Ensure the float switch moves freely and is not obstructed by debris, allowing it to activate and deactivate the pump correctly.
Troubleshooting Guide
Refer to this guide for common issues and their potential solutions.
| Issue | Possible Cause | Solution |
|---|---|---|
| Pump does not start. | No power, float switch obstructed/malfunctioning, insufficient water level. | Check power connection and circuit breaker. Ensure float switch moves freely and is not stuck. Verify water level is above the automatic ON level (approx. 14.17 inches). |
| Pump runs but does not pump water. | Air lock, clogged impeller/intake, kinked/blocked discharge hose. | Check and clear the air release valve. Remove pump and clean impeller/intake. Inspect discharge hose for kinks or blockages. |
| Pump runs continuously. | Float switch stuck in ON position, water level not dropping. | Check float switch for obstruction or damage. Ensure water level drops below the automatic OFF level (approx. 4.72 inches). |
| Reduced pumping efficiency. | Partial clog, worn impeller, low voltage. | Clean impeller and intake. Inspect impeller for wear. Ensure stable power supply. |
Warranty and Customer Support
The LANCHEZ 1.5 HP Submersible Sewage/Effluent Pump comes with a 3-year worry-free manufacturer after-service. This warranty covers defects in materials and workmanship under normal use.
For any questions, technical assistance, or warranty claims, 24-hour customer support is available. Please refer to the product packaging or the official LANCHEZ website for the most up-to-date contact details and support information.
We are committed to providing quality products and excellent customer service.
