1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your LANCHEZ 16in Sand Filter Pump. Please read all instructions carefully before installation and use. Proper adherence to these guidelines will ensure optimal performance and longevity of your pool filtration system.
Figure 1.1: LANCHEZ 16in Sand Filter Pump System
2. Safety Information
Always observe basic safety precautions when installing and operating this electrical equipment. Failure to do so could result in serious injury or death.
- Electrical Safety: Ensure the power source is 115 Volts and the circuit is protected by a Ground Fault Circuit Interrupter (GFCI). Do not operate the pump if the power cord is damaged.
- Water Safety: Never operate the pump dry. Ensure the pump is fully primed with water before starting. Do not allow children to operate this equipment.
- Pressure Safety: The filter operates under pressure. Do not attempt to open the filter or multi-port valve while the pump is running. Always turn off the pump and relieve pressure before servicing.
- Chemicals: Handle pool chemicals with care and follow manufacturer's instructions.
3. Components and Assembly
Before assembly, verify all components are present and undamaged. The package includes:
- 16in Sand Filter Tank
- Filter Assembly
- Drain Plug
- Pump (1.5HP)
- Base Support
- 6-Way Multi-Port Valve
- Flange Clamp
- O-Rings (various sizes)
- Pressure Gauge
- Neck Fitting (Funnel)
- Plug 1/2"38cm MIP
- Hose Adaptors
- Hose Clamps
- 1 1/4" (32mm) x 45cm Hose
- Instruction Manual
Figure 3.1: Exploded View of Components
3.1. Setup and Installation
Follow these steps for proper assembly and installation:
- Positioning: Place the filter pump system on a firm, level surface, preferably concrete, and as close to the pool as possible. Ensure adequate drainage.
- Base Assembly: Securely attach the filter tank to the base support.
- Sand/Filter Media Loading: Remove the multi-port valve and internal components from the tank. Fill the tank with the recommended amount of filter sand (100 lbs) or filter balls (4.6 lbs). Ensure the standpipe is centered during filling.
- Multi-Port Valve Installation: Carefully place the 6-way multi-port valve onto the tank, ensuring the O-ring is properly seated. Secure it with the flange clamp.
- Pump Connection: Connect the pump to the multi-port valve using the provided hose and fittings. Ensure all connections are tight to prevent leaks.
- Pool Connections: Connect the pump's suction port to the pool's skimmer or main drain line, and the multi-port valve's return port to the pool's return line.
- Electrical Connection: Connect the pump to a GFCI-protected electrical outlet.
Figure 3.2: Filter Media Capacity and Flow Rate
4. Operating Instructions
The LANCHEZ sand filter pump features a 6-way multi-port valve and a programmable timer for efficient operation.
4.1. 6-Way Multi-Port Valve Functions
The valve allows for different operational modes. Always turn off the pump before changing valve positions.
- 1. FILTER: Normal filtration mode. Water flows through the sand bed, trapping debris, and returns to the pool.
- 2. BACKWASH: Reverses water flow through the filter to clean the sand bed. Water is directed to waste. Use when pressure gauge reads 8-10 PSI above starting pressure.
- 3. RINSE: Used after backwashing to flush out any remaining debris from the sand bed and settle the sand. Water is directed to waste.
- 4. WASTE: Bypasses the filter and sends water directly to waste. Useful for vacuuming heavy debris or lowering pool water level.
- 5. CLOSED: Shuts off all flow to the filter. Never operate the pump in this position.
- 6. RECIRCULATE: Bypasses the filter and circulates water directly back to the pool. Useful for chemical distribution without filtration.
Figure 4.1: 6-Way Valve Functions
4.2. Programmable Timer
The integrated 24-hour programmable timer allows for automated filtration cycles, saving energy and maintaining water circulation.
- Set Running Hours: Use the timer controls to set the desired daily operating duration for the pump.
- Activate Timer: Turn on the pump. The time at which the timer is activated becomes the daily start time for subsequent cycles.
Figure 4.2: Pump Control Panel with Timer
5. Maintenance
Regular maintenance ensures the longevity and efficiency of your sand filter pump.
5.1. Backwashing and Rinsing
Perform backwashing and rinsing when the pressure gauge indicates a rise of 8-10 PSI above its clean operating pressure, or when pool water clarity decreases.
- Turn off the pump.
- Set the multi-port valve to 'BACKWASH'.
- Turn on the pump and backwash for 2-3 minutes, or until the water in the sight glass (if present) runs clear.
- Turn off the pump.
- Set the multi-port valve to 'RINSE'.
- Turn on the pump and rinse for 30-60 seconds.
- Turn off the pump.
- Set the multi-port valve back to 'FILTER' for normal operation.
5.2. Pre-Filter Basket Cleaning
The integrated pre-filter basket collects coarse debris like hair, leaves, and gravel, preventing them from reaching the pump impeller. Regularly inspect and clean the basket.
- Turn off the pump and disconnect power.
- Close any necessary valves to prevent water flow from the pool.
- Unscrew the see-through lid of the pre-filter housing.
- Remove the filter basket and empty any collected debris.
- Rinse the basket thoroughly with water.
- Inspect the O-ring on the lid for damage and ensure it is clean.
- Replace the basket and securely fasten the lid.
- Open valves and restore power to the pump.
Figure 5.1: Pre-Filter Basket
6. Troubleshooting
This section addresses common issues you might encounter with your sand filter pump.
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Flow / Poor Filtration | Clogged pre-filter basket Dirty filter sand Air leak in suction line Low water level in pool | Clean pre-filter basket Perform backwash and rinse cycle Check all connections for tightness Add water to pool |
| Pump Not Starting | No power to pump Motor overload/thermal protection Impeller jammed | Check power supply and GFCI Allow motor to cool; check for proper ventilation Turn off power and inspect impeller for debris |
| Water Leaks | Loose connections Damaged O-rings/gaskets | Tighten all fittings and clamps Inspect and replace damaged O-rings/gaskets |
| Cloudy Pool Water | Insufficient filtration time Improper chemical balance Dirty filter sand | Increase daily filtration hours Test and adjust pool chemistry Perform backwash and rinse cycle |
7. Specifications
Key technical specifications for the LANCHEZ 16in Sand Filter Pump:
| Specification | Value |
|---|---|
| Brand | LANCHEZ |
| Model Number | LZ-CLP8005AF-16 |
| Size | 16in (4900 GPH) |
| Material | Plastic (Reinforced Thermoplastic Filter Tank) |
| Power Source | Corded Electric |
| Voltage | 115 Volts |
| Wattage | 800 watts |
| Horsepower | 1.5 HP |
| Maximum Flow Rate | 4900 Gallons Per Hour (82 Gallons Per Minute) |
| Maximum Lifting Height | 45 Feet |
| Product Dimensions (L x W x H) | 27.6" x 15.3" x 31.1" |
| Item Weight | 22.8 pounds |
| Recommended Pool Capacity | Up to 16,000 Gallons |
| Sand Capacity | 100 lbs |
| Filter Balls Capacity | 4.6 lbs |
| Valve Type | 6-Way Multi-Port Valve |
Figure 7.1: Performance Curve and Key Specifications
7.1. Pool Selection Tips
Refer to the table below for recommended filter sizes based on pool capacity and flow rate:
| Filter Size | Recommended Max. Pool Size (Gallons) | Max. Flow Rate (GPH) | Sand Capacity (lbs) |
|---|---|---|---|
| 12in | 7000 | 2400 | 55lbs |
| 13in | 11000 | 3500 | 70lbs |
| 16in | 16000 | 4900 | 100lbs |
| 18in | 20000 | 4900 | 150lbs |
Figure 7.2: Pool Compatibility Guide
8. Warranty and Support
LANCHEZ stands behind the quality of its products.
- Warranty: This above ground sand filter pool pump is backed by a three-year worry-free manufacturer after-sales service.
- Customer Support: For any questions, technical assistance, or warranty claims, please contact LANCHEZ customer service. Refer to the product packaging or the official LANCHEZ website for contact details.
