1. Introduction
This manual provides comprehensive instructions for the safe and efficient operation, installation, and maintenance of your Jilong Avenli 1000gal Sand Filter. Please read this manual thoroughly before using the product to ensure proper function and longevity.
The Jilong Avenli 1000gal Sand Filter is designed to keep your swimming pool water clean and free from impurities. With a capacity of 3785 liters per hour, it is suitable for medium-sized inflatable frame swimming pools, including compatible Bestway and Intex models ranging from 244 cm to 488 cm in dimension.
2. Safety Information
WARNING: Always follow basic safety precautions when installing and operating this electrical equipment.
- This product is designed for outdoor use only. Do not operate indoors.
- Ensure the power supply (220-240V) matches the pump's requirements.
- Always disconnect the power supply before performing any maintenance, cleaning, or installation procedures.
- Keep children away from the filter pump and electrical connections.
- Do not operate the pump if the power cord or plug is damaged.
- Never run the pump dry (without water).
- Consult a qualified electrician for any electrical issues or wiring.
3. Package Contents
Please check to ensure all components are present and undamaged:
- Jilong Avenli Sand Filter Pump Unit
- Hoses and Clamps for connection
- Connection Adapters
- Instruction Manual
Note: Filter sand with a grain size of 0.45-0.85mm is not included and must be purchased separately.
4. Setup and Installation
Installation is straightforward and typically takes approximately 20 minutes. Follow these steps carefully:
- Positioning the Filter: Place the sand filter pump on a firm, level surface, at least 2 meters (6.5 feet) away from the pool. Ensure it is lower than the pool's water level for optimal performance.
Figure 4.1: The Jilong Avenli 1000gal Sand Filter Pump unit. This image shows the complete sand filter system with its hoses and pressure gauge, ready for connection.
- Adding Filter Sand: Unscrew the top cover of the filter tank. Carefully pour the recommended filter sand (0.45-0.85mm grain size) into the tank. Do not overfill; leave approximately 15-20 cm from the top.
Figure 4.2: Inside view of the sand filter tank. This image illustrates the empty interior of the filter tank where the sand media will be placed.
- Connecting Hoses:
- Connect one hose from the pool's outlet (suction) to the "INLET" port on the filter pump.
- Connect the second hose from the "OUTLET" port on the filter pump to the pool's inlet (return) fitting.
- Secure all hose connections with clamps to prevent leaks.
Figure 4.3: Close-up of a hose connection adapter. This image shows a typical threaded adapter with O-rings used for securing hoses to the filter unit.
- Priming the Pump: Before starting, ensure the filter tank is filled with water. Open all necessary valves to allow water to flow from the pool into the filter pump. This helps to remove air from the system.
- Electrical Connection: Plug the pump into a grounded electrical outlet (220-240V). Ensure the outlet is protected by a Ground Fault Circuit Interrupter (GFCI) for safety.
5. Operating Instructions
The sand filter pump features a multi-port valve for various operations. Familiarize yourself with the valve positions:
Figure 5.1: Top view of the sand filter with multi-port valve. This image displays the control valve with its various settings (Filter, Backwash, Rinse, Waste, Recirculate, Closed) and the integrated pressure gauge.
- FILTER: This is the standard operating position for daily filtration. Water flows through the sand, trapping debris, and returns clean water to the pool.
- BACKWASH: Used to clean the filter sand. Water flows in reverse, flushing trapped debris out through the waste port.
- RINSE: Used after backwashing to settle the sand and flush any remaining dirty water from the valve.
- WASTE/DRAIN: Bypasses the filter and sends water directly out the waste port. Useful for vacuuming heavy debris or lowering pool water level.
- RECIRCULATE/BYPASS: Circulates water without filtering it. Useful for mixing chemicals.
- CLOSED: Shuts off all flow to the filter. Use when performing maintenance or when the pump is off for extended periods.
To change valve positions, always turn off the pump first.
Daily Operation:
- Ensure the multi-port valve is set to FILTER.
- Turn on the pump.
- Allow the pump to run for several hours daily, depending on pool size and usage, to maintain water clarity.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your sand filter.
Backwashing the Filter:
Backwash when the pressure gauge reads 0.2-0.3 bar (3-5 PSI) above its clean operating pressure, or when water flow significantly decreases.
- Turn off the pump.
- Set the multi-port valve to BACKWASH.
- Turn on the pump and run until the water flowing from the waste port is clear (typically 1-2 minutes).
- Turn off the pump.
- Set the multi-port valve to RINSE.
- Turn on the pump and run for 30-60 seconds.
- Turn off the pump.
- Set the multi-port valve back to FILTER.
- Turn on the pump to resume normal filtration.
Winterization:
Before freezing temperatures, drain all water from the filter pump and hoses. Store the unit in a dry, protected area.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Low water flow / High pressure gauge reading | Clogged filter sand | Perform backwash and rinse cycle. |
| Low water flow / Low pressure gauge reading | Air in the system; Pump not primed; Clogged skimmer/strainer basket | Ensure all connections are tight. Prime the pump. Clean skimmer/strainer basket. |
| Water leaking from connections | Loose connections; Damaged O-rings/gaskets | Tighten hose clamps. Inspect and replace O-rings/gaskets if damaged. |
| Pump not starting | No power; Tripped GFCI; Motor issue | Check power supply and GFCI. Consult a qualified technician if motor issues persist. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 290730EU |
| Brand | AVENLI (Manufactured by Jilong) |
| Pump Capacity | 3785 liters/hour (1000 gallons/hour) |
| Power Supply | 220-240V |
| Recommended Filter Sand Grain Size | 0.45-0.85 mm (not included) |
| Product Weight | 8 kg |
| Product Dimensions | 30 x 40 x 50 cm |
| Compatible Pool Dimensions | 244 - 488 cm |
| Material | Plastic |
| Color | Gray |
9. Warranty and Support
For warranty information and technical support, please refer to the contact details provided by your retailer or visit the official AVENLI/Jilong website. Keep your purchase receipt as proof of purchase for any warranty claims.
For extended warranty options, please check with your point of purchase or refer to additional warranty plans available, such as the 2-Year Extended Warranty by Salama Care (E-mail delivery) mentioned in product listings.
