1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your choosmo 10" Sand Filter System. This system is designed for above-ground pools, featuring a 1/4HP pump and a 6-way valve for comprehensive water circulation and filtration.
Figure 1: Overview of the choosmo 10" Sand Filter System, showing the pump connected to the filter tank with the multi-port valve on top.
2. Safety Information
Please read and understand all safety warnings and instructions before installing or operating this product. Failure to follow these instructions could result in serious injury or property damage.
- Always disconnect power to the pump before performing any service or maintenance.
- Ensure the electrical outlet is properly grounded and protected by a Ground Fault Circuit Interrupter (GFCI).
- Do not operate the pump if the power cord or plug is damaged.
- Keep children and pets away from the filter system during operation.
- Ensure the filter system is placed on a firm, level surface to prevent tipping.
- Do not run the pump dry. Ensure it is primed with water before starting.
- Handle pool chemicals with care and follow their manufacturer's instructions.
3. Package Contents
Verify that all components are present and undamaged before beginning assembly.
- 10" Sand Filter Tank
- 1/4HP Pool Pump
- 6-Way Multi-Port Valve
- Connecting Hose (Pump to Valve)
- 5 Hose Adapters (Compatible with 1-1/2" and 1-1/4" hoses)
- 6ft Power Cord
- Pressure Gauge
- Clamps and Gaskets
Figure 2: Key components of the filter system, highlighting the 6ft power cord, the efficient 1/4HP pump motor, and the durable sand tank.
4. Setup and Installation
Follow these steps for proper assembly and installation of your sand filter system.
- Placement: Position the filter system on a solid, level surface, preferably below the water level of the pool for optimal priming. Ensure it is close enough to an appropriate electrical outlet, utilizing the 6ft power cord for flexible placement.
- Add Filter Sand: Remove the multi-port valve from the top of the filter tank. Carefully pour approximately 30 lbs of #20 silica sand (0.018-0.022 inch quartz sand particles) into the tank. Ensure the standpipe inside the tank remains centered.
- Install Multi-Port Valve: Place the 6-way multi-port valve onto the top of the filter tank, aligning it with the standpipe. Secure the valve to the tank using the provided clamp or locking ring. Ensure a tight seal to prevent leaks.
- Connect Pump to Filter: Attach the pump to the filter tank using the short connecting hose and clamps. Ensure all connections are secure and leak-free.
- Connect Pool Hoses: Use the provided hose adapters to connect your pool's inlet and outlet hoses to the filter system. The system is compatible with both 1-1/2" and 1-1/4" pool hoses. The pool's return line connects to the 'RETURN' port on the valve, and the suction line from the pool connects to the pump's inlet.
- Install Pressure Gauge: Screw the pressure gauge into the designated port on the multi-port valve. Apply Teflon tape to the threads for a secure, leak-free seal.
- Priming the Pump: Before starting, ensure the pump is filled with water. Open the air relief valve on the pump (if present) or remove the pump lid and fill the pump basket with water. Close the valve/lid securely.
- Electrical Connection: Plug the 6ft power cord into a properly grounded GFCI-protected electrical outlet.
Figure 3: Product dimensions and hose adapter details, illustrating the various connection sizes for flexible installation.
Figure 4: The sand filter system positioned outdoors next to an above-ground pool, demonstrating a typical installation scenario.
5. Operating Instructions
The 6-way multi-port valve allows for various operational modes to maintain your pool's cleanliness. Always turn off the pump before changing the valve position.
- Filter: This is the normal operating position for filtering pool water. Water flows through the sand, trapping debris, and returns to the pool.
- Waste: Used for vacuuming heavy debris directly to waste, bypassing the filter. Also used for lowering the pool water level.
- Closed: Shuts off all flow to the filter. Use this position only when the pump is off and you are performing maintenance or cleaning the pump basket.
- Backwash: Reverses the flow of water through the filter to clean the sand bed. Water is discharged to waste. Perform backwash when the pressure gauge reads 8-10 PSI above its clean operating pressure.
- Recirculate: Circulates water through the system without filtering it. Useful for distributing chemicals without filtering.
- Rinse: Used immediately after backwashing to settle the sand bed and flush any remaining dirty water to waste before returning to Filter mode. Run for 30-60 seconds.
Figure 5: Illustration of the 6-way valve functions, detailing each mode for comprehensive pool maintenance.
General Operation Tips:
- Run the filter system for at least 8-12 hours daily, or as needed, to maintain clear water.
- Monitor the pressure gauge regularly. An increase in pressure indicates the filter needs backwashing.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your sand filter system.
- Backwashing and Rinsing: Perform backwash and rinse cycles as described in the Operating Instructions section when the pressure gauge indicates.
- Sand Replacement: Filter sand typically needs to be replaced every 3-5 years, depending on usage and water quality.
- Pump Basket Cleaning: Periodically clean the pump's strainer basket to remove large debris that could impede flow. Ensure the pump is off and disconnected from power before opening the basket.
- Winterization: In colder climates, drain all water from the pump, filter, and hoses to prevent freezing damage. Store the pump and valve indoors if possible.
7. Troubleshooting
Refer to this section for common issues and their potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Low water flow / Poor filtration | Clogged filter sand; Clogged pump basket; Air leak in suction line; Pump not primed. | Perform backwash/rinse; Clean pump basket; Check all connections for air leaks; Re-prime pump. |
| Pump not priming | Air in system; Low water level in pool; Clogged suction line. | Ensure pump is filled with water; Check pool water level; Clear any blockages in suction line. |
| Water leaking from connections | Loose connections; Damaged O-rings/gaskets; Improperly seated gaskets. | Tighten all connections; Inspect and replace O-rings/gaskets if damaged; Ensure gaskets are flat and well-seated during assembly. |
| Pressure gauge leaks | Improperly sealed threads. | Remove gauge, reapply Teflon tape generously to threads, and re-install securely. |
| Drain leaks on filter tank | Improperly seated drain gasket. | Disassemble drain, ensure gasket is flat and well-seated, then reassemble. Consider testing without sand first to verify seal. |
| Pump is noisy | Lack of water (running dry); Air leak in suction line; Debris in impeller. | Ensure pump is primed; Check for air leaks; Inspect impeller for obstructions (disconnect power first). |
8. Specifications
Technical details for the choosmo 10" Sand Filter System.
| Parameter | Value |
|---|---|
| Model Number | CMP 2520 |
| Product Dimensions | 15.6 x 11.2 x 23.3 inches |
| Item Weight | 21.5 pounds |
| Manufacturer | Acorn Pool Care Inc |
| Pump Horse Power | 1/4 HP |
| Max. Flow Rate | 2220 GPH |
| Voltage | 115V |
| Amperage | 2.5 Amps |
| Max. Water Temperature | 104°F |
| Recommended Sand Type | Quartz Sand Particles (0.018-0.022 Inch) |
| Sand Capacity | 30 lbs |
| Hose Fitting Size Compatibility | 1.25 Inch, 1.5 Inch |
| Valve Type | Six-Way Valve |
Figure 6: Detailed technical parameters of the filter system, including electrical and performance specifications.
9. Warranty and Support
choosmo products are manufactured with care and undergo rigorous testing. In the unlikely event of issues with your pump or filter system, professional after-sale service is available.
For warranty claims or technical support, please contact the manufacturer, Acorn Pool Care Inc, or the seller, CHOOSMO, through your original purchase platform.