Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your SWIMLINE HYDROTOOLS Pool Sand Filter Pump, Model 71915. Designed for both above-ground and in-ground pools up to 19,000 gallons, this system ensures efficient water filtration, consistent performance, and easy backwashing. Please read this manual thoroughly before installation and operation to ensure safe and effective use of your new pool filter system.
Safety Information
WARNING: Failure to follow these instructions can result in serious injury or death.
- Always disconnect power to the pump before performing any maintenance or service.
- Ensure the filter system is installed on a level, solid surface capable of supporting its weight when filled with sand and water.
- Do not operate the pump dry. Ensure the pump is primed with water before starting.
- Keep all electrical connections dry and protected from water. Use a Ground Fault Circuit Interrupter (GFCI) for electrical safety.
- Do not allow children to operate or play with the filter system.
- Refer to local codes and regulations for proper installation and electrical requirements.
- Use only genuine replacement parts and accessories.
Package Contents
Verify that all components listed below are present in your package:
- 19-inch Sand Filter Tank
- 0.9 THP (1 HP) 4500 GPH Pump
- Filter Base
- 6-Way Multi-Port Valve
- Pressure Gauge
- Sight Glass
- Drain Valve
- 3-Prong Plug & Power Cord
- 2 Filter Connection Hoses
- All necessary hardware for assembly (clamps, fittings, etc.)
Image: All included accessories for the Swimline Hydrotools sand filter system, laid out for inspection.
Setup & Installation
1. Site Selection
Choose a level, firm location as close to the pool as possible. Ensure adequate drainage and protection from direct sunlight and extreme weather. The location should allow easy access for maintenance.
2. Assembling the Filter Base and Tank
- Place the filter base on the selected level surface.
- Carefully place the 19-inch sand filter tank onto the filter base, ensuring it is securely seated.
Image: The complete Swimline Hydrotools pool sand filter pump system, including the tank, pump, and hoses.
3. Filling the Filter Tank with Sand
- Remove the multi-port valve from the top of the tank.
- Place a plastic bag or cover over the standpipe inside the tank to prevent sand from entering it.
- Fill the tank approximately halfway with water. This helps cushion the sand as it's added.
- Slowly add up to 175 lbs of #20 silica sand (not included) into the tank. Ensure the sand is evenly distributed.
- Remove the plastic bag/cover and ensure no sand entered the standpipe.
4. Attaching the Multi-Port Valve
- Ensure the O-ring is properly seated on the multi-port valve.
- Carefully align the multi-port valve with the tank opening and the standpipe. Press down firmly to ensure a tight seal.
- Secure the valve to the tank using the provided clamp or bolts, tightening evenly.
5. Connecting the Pump and Hoses
- Connect the pump to the filter tank using the provided short hose. Ensure all connections are tight and use Teflon tape on threaded fittings to prevent leaks.
- Connect the pool's skimmer line to the pump's inlet.
- Connect the multi-port valve's "RETURN" port to the pool's return line.
- Connect a backwash hose (not included) to the "WASTE" port of the multi-port valve, directing it to an appropriate drainage area.
- Ensure all hose clamps are securely fastened. Note: Some pool types (e.g., Bestway) may require additional adapters for hose compatibility.
Image: The Swimline Hydrotools sand filter pump system correctly installed next to an above-ground pool, showing hose connections.
Operating the Filter System
Before starting the pump, ensure the pool is filled to the proper level and all connections are secure. The multi-port valve allows for various operational modes:
Image: Detailed view of the 7-Way Multi-Port Valve with its various settings clearly labeled.
Multi-Port Valve Settings:
| Setting | Function |
|---|---|
| FILTER | Normal filtering mode. Water flows through the sand bed, trapping debris, and returns to the pool. |
| BACKWASH | Cleans the filter by reversing the water flow, flushing trapped debris out through the waste line. Use when pressure gauge reads 8-10 PSI above starting pressure. |
| RINSE | Used after backwashing to flush out any remaining dirt from the filter and re-settle the sand bed. Water goes to waste. |
| WASTE | Bypasses the filter, sending water directly out the waste line. Useful for vacuuming heavy debris directly to waste or lowering pool water level. |
| RECIRCULATE | Bypasses the filter, circulating water directly back to the pool. Useful for distributing chemicals without filtering. |
| CLOSED | Shuts off flow to the filter and pump. Use for servicing the pump or filter. Never operate the pump with the valve in the CLOSED position. |
| WINTER | Used for winterizing the filter system. Consult winterization guides for full procedure. |
Important: Always turn off the pump before changing the multi-port valve setting to prevent damage to the valve or system.
Maintenance
Backwashing the Filter
Backwash your filter when the pressure gauge reads 8-10 PSI above its clean starting pressure, or when water clarity decreases. This typically occurs every 1-2 weeks depending on pool usage and debris.
- Turn off the pump.
- Set the multi-port valve to BACKWASH.
- Turn on the pump. Run for 2-3 minutes or until the water in the sight glass runs clear.
- Turn off the pump.
- Set the multi-port valve to RINSE.
- Turn on the pump. Run for 30-60 seconds.
- Turn off the pump.
- Set the multi-port valve to FILTER.
- Turn on the pump to resume normal filtration.
Sand Replacement
The filter sand typically lasts for approximately 5 years, depending on water chemistry and backwashing frequency. Replace the sand when filtration efficiency significantly decreases despite regular backwashing.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Flow / Poor Filtration | Clogged filter sand; Clogged pump strainer basket; Air leak in suction line; Low water level in pool. | Backwash filter; Clean strainer basket; Check all connections for leaks; Add water to pool. |
| Water Leaking from System | Loose connections; Damaged O-rings/gaskets; Cracked housing. | Tighten all connections; Inspect and replace O-rings/gaskets; Contact customer service for cracked components. |
| Pump Not Starting / No Power | No power to outlet; Tripped GFCI; Motor issue. | Check power supply; Reset GFCI; Consult an electrician or customer service. |
| Sand Returning to Pool | Damaged lateral assembly inside filter; Too much sand; Incorrect sand type. | Inspect/replace laterals; Ensure correct sand quantity and type. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 71915 |
| Filter Size | 19 Inch |
| Pump Horsepower (THP) | 0.9 THP (1 HP) |
| Flow Rate | 4500 GPH (Gallons Per Hour) |
| Max. Pool Size Capacity | Up to 19,000 Gallons |
| Sand Capacity | Up to 175 lbs. (#20 Silica Sand) |
| Product Dimensions | 24.4 x 15.7 x 19 inches |
| Item Weight | 58.4 pounds |
| Multi-Port Valve | 6-Way (Filter, Backwash, Rinse, Waste, Recirculate, Closed, Winter) |
Image: A table detailing various Swimline Hydrotools sand filter models, their filter sizes, recommended maximum pool sizes, gallons per hour (GPH), and sand capacities. Model 71915 is highlighted.
Warranty and Support
SWIMLINE HYDROTOOLS offers a 1-year guarantee against manufacturing defects for this product. For technical assistance, troubleshooting, or warranty claims, please contact Swimline customer service. Our team is based in New York, USA, and is dedicated to providing in-demand customer service.
For more information and support, please visit the official Swimline website or refer to the contact information provided on your product packaging.
