LANCHEZ LZ-CLP5503

LANCHEZ 13" Sand Filter Pump User Manual

Model: LZ-CLP5503

For Above Ground Pools

1. Introduction

Thank you for choosing the LANCHEZ 13" Sand Filter Pump. This manual provides essential information for the safe operation, installation, maintenance, and troubleshooting of your new pool filter system. Please read this manual thoroughly before installation and operation to ensure optimal performance and longevity of the product.

LANCHEZ 13 inch Sand Filter Pump with all components

Figure 1.1: LANCHEZ 13" Sand Filter Pump System. This image displays the complete sand filter pump system, including the filter tank, pump, multi-port valve, and various accessories like hoses and fittings.

The LANCHEZ 13" Sand Filter Pump is designed for efficient filtration of above-ground pools, ensuring crystal-clear water. It features a 3/4 HP pump with a maximum flow rate of 3500 GPH, suitable for pools up to 11000 gallons. The durable thermoplastic filter tank and 6-way valve provide reliable and versatile operation.

2. Safety Information

WARNING: Read and follow all instructions carefully. Failure to do so could result in serious injury or death.

  • Always disconnect power to the pump before performing any service or maintenance.
  • Ensure the pump is installed on a solid, level surface, protected from direct sunlight and excessive moisture.
  • Do not operate the pump if the power cord or plug is damaged.
  • This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
  • Keep children away from the equipment area.
  • Ensure all connections are secure and leak-free before operating.
  • Do not run the pump dry. Ensure the pump is primed with water before starting.

3. Package Contents

Verify that all components listed below are included in your package. If any parts are missing or damaged, please contact LANCHEZ customer service.

  • 13in Sand Filter Tank x 1
  • Filter Assembly x 1
  • Drain Plug x 1
  • Pump x 1 (3/4 HP)
  • Base Support x 1
  • Valve x 1 (6-Way Multi-Port Valve)
  • Flange Clamp x 1
  • O-Ring x 5 (1 for valve, 4 for hose adaptors)
  • Neck Fitting (Funnel) x 1
  • Plug 1/2" 38mm MIP x 1
  • Hose Adaptor x 5
  • Hose Clamp x 2
  • 1/4" (32mm) x 45cm Hose x 1
  • Pressure Gauge x 1
  • 0.44lb Filter Balls (initial set)
  • User Manual x 1
Diagram of all included parts for the LANCHEZ sand filter pump system

Figure 3.1: Exploded view of all components. This diagram illustrates each part included in the package, categorized by Filter, Pump, Base, Valve, and Hose components, aiding in identification during assembly.

4. Setup and Installation

Follow these steps for proper assembly and installation of your sand filter pump system.

  1. Positioning: Place the filter system on a firm, level surface, preferably concrete, and as close to the pool as possible. Ensure it is protected from direct weather exposure.
  2. Assemble Base: Attach the pump and filter tank to the base support according to the diagrams in the full manual.
  3. Fill Filter Tank:
    • Ensure the internal standpipe and laterals are correctly positioned at the bottom of the tank.
    • Add the specified amount of filter media (sand or filter balls). For this 13-inch model, it requires approximately 70 lbs of filter sand or 2.2 lbs of filter balls. A small amount of filter balls (0.44lb) is included.
    • Cover the standpipe opening to prevent media from entering it.
  4. Attach Multi-Port Valve: Secure the 6-way valve to the top of the filter tank using the flange clamp. Ensure the O-ring is properly seated for a watertight seal.
  5. Connect Pump to Filter: Connect the pump's discharge port to the "PUMP" port on the multi-port valve.
  6. Connect to Pool:
    • Connect the pool's skimmer/suction line to the pump's inlet.
    • Connect the "RETURN" port on the multi-port valve to the pool's return line.
    • Connect the "WASTE" port on the multi-port valve to a suitable backwash line or drain.
  7. Install Pressure Gauge: Screw the pressure gauge into the designated port on the multi-port valve.
  8. Prime the Pump: Before starting, ensure the pump is filled with water to prevent dry running. Open all necessary valves to allow water flow to the pump.
  9. Electrical Connection: Connect the pump to a properly grounded electrical outlet. Ensure the voltage matches the pump's requirements (115 Volts).
LANCHEZ Sand Filter Pump with specifications for filter media

Figure 4.1: Filter Media Capacity. This image highlights the recommended filter media capacities: 13 inches in diameter, 70 lbs of filter sand, or 2.2 lbs of filter balls.

Pool selection tips table for filter sizes

Figure 4.2: Pool Selection Tips. This table provides guidance on selecting the correct filter size based on recommended maximum pool size, maximum flow rate (GPH), and sand capacity for 12in, 13in, 16in, and 18in filter models.

5. Operating Instructions (6-Way Valve Functions)

The 6-way multi-port valve allows for various operational modes. Always turn off the pump before changing the valve position to prevent damage.

  • 1. FILTER: Normal filtering mode. Water flows through the sand bed, trapping debris, and returns to the pool. This is the primary operating mode.
  • 2. BACKWASH: Used for cleaning the filter media. Water flow is reversed, flushing trapped debris out through the waste port. Perform when pressure gauge reads 8-10 PSI above starting pressure.
  • 3. RINSE: Used after backwashing to flush out any remaining dirt from the filter media and settle the sand bed. Water flows to the waste port.
  • 4. WASTE: Bypasses the filter and sends water directly out the waste port. Useful for vacuuming heavy debris directly to waste or lowering pool water level.
  • 5. CLOSED: Shuts off all flow to the filter and pump. Never operate the pump with the valve in the CLOSED position.
  • 6. RECIRCULATE: Bypasses the filter and circulates water directly back to the pool. Useful for mixing chemicals without filtering.
Diagram of the 6-way valve with different functions

Figure 5.1: 6-Way Valve Functions. This image visually explains each of the six settings on the multi-port valve: Filter, Backwash, Rinse, Waste, Closed, and Recirculate, indicating their purpose and flow direction.

Detailed diagram of 6-way valve functions

Figure 5.2: Detailed 6-Way Valve Operations. A more detailed visual representation of the 6-way valve, showing the internal flow paths for each function and providing brief descriptions.

6. Maintenance

Regular maintenance ensures the longevity and efficiency of your filter system.

  • Backwashing: Perform backwashing when the pressure gauge reading increases by 8-10 PSI above its clean operating pressure, or when water flow to the pool noticeably decreases.
    1. Turn off the pump.
    2. Set the valve to "BACKWASH".
    3. Turn on the pump and run until the water in the sight glass (if available) runs clear (typically 2-3 minutes).
    4. Turn off the pump.
    5. Set the valve to "RINSE".
    6. Turn on the pump and run for 30-60 seconds.
    7. Turn off the pump.
    8. Set the valve back to "FILTER".
    9. Turn on the pump for normal operation.
  • Strainer Basket Cleaning: The integrated pre-filter strainer basket should be checked and cleaned regularly, especially if there's a lot of debris in the pool.
    Close-up of the pre-filter strainer basket

    Figure 6.1: Prefilter and Strainer Basket. This image shows the integrated pre-filter designed to capture coarse debris like hair, leaves, and gravel before they reach the main filter, featuring a clear lid for easy inspection and a detachable basket for cleaning.

    Pressure gauge and filter basket detail

    Figure 6.2: Pressure Gauge and Filter Basket. This image provides a close-up view of the pressure gauge, used to monitor water pressure for backwashing, and the filter basket, emphasizing its role in effective filtration.

  • Winterization: Before freezing temperatures, drain all water from the pump, filter, and hoses. Store components in a dry, protected area.

7. Troubleshooting

Refer to this section for common issues and their solutions.

Problem Possible Cause Solution
Pump not starting No power; tripped breaker; motor issue Check power connection, reset breaker. Contact support if motor hums but doesn't start.
Low water flow / High pressure Clogged filter media; dirty strainer basket; air in system Perform backwash and rinse. Clean strainer basket. Check for air leaks in suction line.
Water not clearing Insufficient filtration time; improper chemical balance; filter media needs replacement Increase filtration time. Test and adjust pool chemicals. Consider replacing sand/filter balls if old.
Leaking at valve or connections Loose connections; damaged O-rings/gaskets Tighten all connections. Inspect and replace O-rings/gaskets if damaged.

8. Specifications

Detailed technical specifications for the LANCHEZ 13" Sand Filter Pump.

Feature Specification
Brand LANCHEZ
Model Number LZ-CLP5503
Size 13 inches
Horsepower (HP) 3/4 HP
Maximum Flow Rate 3500 GPH (58 Gallons Per Minute)
Maximum Lifting Height 44 Feet
Voltage 115 Volts
Wattage 550 watts
Product Dimensions (L x W x H) 24.8" x 15.35" x 19.68"
Item Weight 34.1 pounds
Material Plastic (Reinforced Thermoplastic)
Specific Uses Above-Ground Pool, Pool
Included Components 0.44lb Filter Balls, Manual, 13in Sand Filter Pump
Technical specifications chart for LANCHEZ pump

Figure 8.1: Performance Curve and Key Specifications. This chart illustrates the pump's performance curve (Head vs. GPH) and lists key specifications such as Output Power (3/4HP), Max Head (44FT), Rated Voltage (110-120V), Max Flow Rate (3500GPH), and Rated Current (4.5A).

9. Warranty and Support

LANCHEZ provides comprehensive support for its products.

Warranty Information:

This LANCHEZ Sand Filter Pump is backed by a 3-Year Warranty from the manufacturer. This warranty covers defects in materials and workmanship under normal use and service.

Customer Support:

For technical assistance, warranty claims, or any questions regarding your LANCHEZ product, please contact the seller directly or visit the official LANCHEZ website for support resources.

Seller: Lanchez Pumps Industry Inc.

Please have your model number (LZ-CLP5503) and purchase date available when contacting support.

© 2025 LANCHEZ. All rights reserved.

This manual is subject to change without notice.

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