1. Introduction
The Pentair SuperFlo 340039 is a high-performance single-speed pool pump designed for efficient water circulation in residential pools. This manual provides essential information for the safe installation, operation, and maintenance of your pump. Please read all instructions carefully before installation and use to ensure proper function and longevity of the product.
Image 1.1: Side view of the Pentair SuperFlo 340039 Single Speed Pool Pump. This image shows the motor on the right, the pump housing on the left with a clear lid for the strainer basket, and the inlet/outlet ports.
2. Safety Information
WARNING: This product must be installed and serviced by a qualified pool professional in accordance with all applicable local and national codes and ordinances. Improper installation or operation can result in serious injury, death, or property damage.
- Always disconnect power to the pump at the circuit breaker before performing any service or maintenance.
- Ensure the pump is properly grounded and bonded to prevent electrical shock hazards.
- Do not operate the pump if it is damaged or if any electrical components are exposed to water.
- Keep children and pets away from the pump area during operation.
- This pump is designed for use with swimming pools and spas. Do not use for other purposes.
- California Residents: Due to specific state restrictions, this pump cannot be sold to customers living in California.
3. Installation and Setup
3.1 Site Selection
Choose a location that is dry, well-ventilated, and protected from direct sunlight and excessive moisture. The pump should be installed as close to the pool as possible to minimize friction loss from plumbing. Ensure adequate space around the pump for maintenance and service.
3.2 Mounting the Pump
Mount the pump on a firm, level base to prevent vibration and stress on the plumbing. A concrete pad or similar durable material is recommended. Avoid using wood, as it can rot when exposed to moisture. Ensure the pump is positioned to align with existing plumbing.
Image 3.1: Dimensions of the Pentair SuperFlo 340039 Pool Pump. The pump measures approximately 27.5 inches long, 12.5 inches wide, and 14.8 inches high.
3.3 Plumbing Connections
The SuperFlo pump includes unionized fittings with gaskets for both the input and output ends, designed for 1.5-inch PVC plumbing.
- Dry-fit all plumbing connections first to ensure proper alignment before cementing.
- Apply PVC primer and cement according to manufacturer instructions for a watertight seal.
- Connect the suction line to the front port of the pump and the discharge line to the top port.
- Ensure all connections are secure and leak-free.
3.4 Electrical Wiring
IMPORTANT: Electrical wiring should only be performed by a licensed electrician or qualified pool professional. Incorrect wiring can lead to severe injury, fire, or pump damage.
- Verify the pump's voltage (115V or 230V) matches your electrical supply. This model supports both.
- Turn off all power to the pool equipment at the main circuit breaker before beginning any electrical work.
- Connect the load wires to the "L1" and "L2" posts inside the motor's wiring compartment.
- Connect the ground wire to the green-colored screw post.
- Ensure proper bonding by connecting a bare copper wire from the pump's bonding lug to other pool equipment and a ground rod, as required by local codes.
- Securely close the wiring compartment cover after connections are made.
4. Operating Instructions
4.1 Priming the Pump
Before starting the pump for the first time, or after the pump has been drained, it must be primed.
- Ensure all valves are open to allow water flow to the pump.
- Remove the clear lid of the strainer basket by turning it counter-clockwise.
- Fill the strainer basket with water until it reaches the suction pipe level.
- Replace the lid, ensuring it is securely tightened to prevent air leaks. The cam and ramp lid design allows for easy locking with a quarter turn.
- Turn on the power to the pump. The pump should begin to pull water and evacuate air.
- If the pump does not prime within a few minutes, turn it off, re-check water levels, and inspect for air leaks in the suction line.
Image 4.1: Top view of the Pentair SuperFlo 340039 Pool Pump. This view highlights the clear strainer basket lid with its "dog ears" design for easy removal and the top discharge port.
4.2 Normal Operation
Once primed, the SuperFlo pump operates continuously at a single speed. It is designed for quiet operation. Monitor the pressure gauge on your filter system to ensure proper flow and backwash when necessary.
5. Maintenance
5.1 Strainer Basket Cleaning
Regularly inspect and clean the strainer basket to maintain optimal pump performance and prevent clogging.
- Turn off the pump at the circuit breaker.
- Close any necessary valves to prevent water flow from the pool.
- Remove the clear strainer basket lid by turning it counter-clockwise. The "dog ears" on the lid are designed for easier grip and removal.
- Lift out the basket and empty any debris.
- Rinse the basket thoroughly with water.
- Inspect the O-ring on the lid for cracks or wear. Replace if necessary.
- Return the basket to the pump and securely replace the lid.
- Re-open valves and restore power to the pump.
5.2 Winterization
In areas subject to freezing temperatures, the pump must be drained and winterized to prevent damage.
- Turn off all power to the pump at the circuit breaker.
- Drain all water from the pump by removing the drain plugs located on the pump housing.
- Store the drain plugs in the strainer basket.
- If possible, remove the pump and store it in a warm, dry place. If not, cover the pump with a weather-resistant cover.
5.3 General Care
- Keep the pump area clean and free of debris.
- Periodically check for leaks at plumbing connections.
- Ensure the motor's ventilation openings are clear and unobstructed.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power; tripped breaker; faulty wiring; motor issue. | Check power supply and circuit breaker. Verify wiring connections. Consult a professional if motor is faulty. |
| Pump runs but no water flow | Pump not primed; clogged strainer basket; closed valves; air leak in suction line. | Prime the pump (Section 4.1). Clean strainer basket (Section 5.1). Open all valves. Check for and seal air leaks. |
| Low water flow | Clogged strainer basket; dirty filter; partially closed valves; air leak. | Clean strainer basket. Backwash or clean filter. Ensure all valves are fully open. Check for air leaks. |
| Excessive noise or vibration | Air leak in suction line; cavitation; motor bearing wear; pump not securely mounted. | Check for air leaks. Ensure adequate water supply to pump. Consult a professional for motor issues. Securely mount pump. |
| Water leak at pump | Loose plumbing connections; worn O-rings or seals; cracked housing. | Tighten connections. Replace O-rings/seals. If housing is cracked, pump may need replacement or professional repair. |
For issues not listed above or if troubleshooting steps do not resolve the problem, contact a qualified pool professional or Pentair customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 340039 |
| Brand | Pentair |
| Horsepower | 1.5 HP (1½ Horsepower) |
| Voltage | 115/230 Volts |
| Phase | Single-Phase |
| Power Source | Corded Electric |
| Product Dimensions (L x W x H) | 27.5" x 12.5" x 14.8" |
| Item Weight | 38.3 Pounds |
| Material | Metal (Motor), Durable Plastic (Pump Housing) |
| Specific Uses | In-Ground Pool Circulation |
| Manufacturer | PENTAIR WATER POOL AND SPA, INC. |
| UPC | 788379691028 |
8. Warranty and Support
8.1 Product Warranty
For detailed information regarding the warranty coverage for your Pentair SuperFlo 340039 pool pump, please refer to the warranty card included with your purchase or visit the official Pentair website. Warranty terms and conditions may vary.
8.2 Customer Support
If you require technical assistance, have questions about installation, operation, or maintenance, or need to report a product issue, please contact Pentair customer service. Contact information can typically be found on the Pentair website or in your product documentation.
