Pentair WhisperFlo VST 2.6THP Variable Speed Pump – Efficient and Versatile Pool Performance

Product Overview

We supply the Pentair WhisperFlo VST variable speed pump. This high-performance 2.6 total horsepower unit is engineered to deliver efficient and versatile operation, making it the ideal choice for enhancing the performance and energy-efficiency of your pool’s circulation system.

Pump Specifications

• Model: Pentair WhisperFlo VST, 2.6thp, 115v/208-230v, 2″, EC |EC-011533
• Motor: 2.6 total horsepower, variable speed, 115/208-230 volt
• Connections: 2 inch suction and discharge
• Design: Engineered for energy-efficient performance

The Pentair WhisperFlo VST is a powerful and versatile variable speed pump, designed to excel in a wide range of residential and commercial pool applications. Its advanced engineering and energy-efficient operation ensure reliable performance and cost savings.

Exploded parts diagram: This part is shown on the Pentair WhisperFlo VST Pump Replacement Parts exploded parts diagram.

🔧 Pentair WhisperFlo VST Pump Replacement Parts – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.

Dimensions and Installation

Measuring 22.5″ L x 12.1″ W x 14.1″ H, the WhisperFlo VST pump seamlessly integrates into a variety of pool systems. The streamlined design and flexible voltage compatibility simplify the installation process.

Performance Features

• Exceptional Efficiency: The variable speed motor delivers impressive performance while significantly reducing energy consumption, lowering your operating costs.
• Unparalleled Versatility: The wide performance range allows you to fine-tune the pump’s operation to match your specific pool’s requirements, maximizing efficiency.
• Reliable Operation: Robust construction and advanced engineering ensure long-lasting, dependable performance, even in demanding pool environments.
• Compatibility: The 2-inch connections and flexible voltage compatibility (115V/208-230V) make the WhisperFlo VST suitable for a wide range of pool systems.

🔧 Exploded diagram and parts

This part belongs to the Pentair WhisperFlo VST Pump Replacement Parts assembly. Everything listed below is something we stock for it, and the numbers match the diagram.

Complete cable replacements

Parts that go with this

Applications

Specifically designed for:

• Residential pools
• Commercial pools
• Retrofit and new pool installations
• Energy-efficient pool circulation systems

Technical Support

Complete installation instructions and technical documentation are included. Additional support materials are available for specialized installations.

This is an E-Commerce Exclusive item.

Unions and pump cords: pick the union size that matches your pump's ports (see the size chart below), and a 4-wire cord for a 2-speed pump.

How do I Replace a Hot Tub Pump?

Here's a general step-by-step guide on how to replace a hot tub pump. Keep in mind that the specific steps may vary depending on your hot tub's make and model, so it's essential to consult your hot tub's manual for model-specific instructions. If you're not comfortable with this procedure, it's a good idea to seek professional assistance.

Materials You'll Need:

• Replacement pump
• Screwdriver
• New union O-rings
• A strap wrench, only if a union nut is stuck
• PVC primer and cement, only if you are gluing in new tailpieces

Procedure:

1. Turn Off the Power: Before you begin, ensure the hot tub's power supply is turned off at the circuit breaker or disconnect switch. Safety should always be a priority when working with electrical components.

2. Drain the Hot Tub: If your hot tub is not already empty, you'll need to drain it. Follow your hot tub's manual or manufacturer's instructions for proper draining. (You might not need to do this if you can lock the pump off with the gate valves)

3. Locate the Pump: Identify the location of the existing pump in your hot tub. It's usually located near the equipment area or in a designated pump compartment.

4. Disconnect the Electrical Wiring: Carefully disconnect the electrical wiring from the old pump. This typically involves removing the electrical conduit cover, unscrewing wire nuts, and disconnecting the wires from the terminals. Be sure to note the wire connections or take a picture for reference when connecting the new pump.

5. Disconnect the Plumbing: Depending on your hot tub's plumbing setup, you'll need to disconnect the plumbing connections to the pump. Unscrew the union nuts by hand. If one is stuck, use a strap wrench rather than a pipe wrench, which can crack the nut. Be prepared for some water spillage when disconnecting the plumbing.

6. Remove the Old Pump: Once the electrical and plumbing connections are detached, carefully remove the old pump from its mounting position. Some pumps may be secured with mounting brackets or bolts.

7. Prepare the New Pump: If the new pump is not pre-assembled, you may need to attach fittings, unions, or adapters to match your hot tub's plumbing. Pump unions use buttress threads that seal on an O-ring, so fit new O-rings and hand-tighten the nuts. Do not use thread tape, pipe dope or sealant on them.

8. Mount the New Pump: Position the new pump in the same location as the old one and secure it in place using the mounting brackets or bolts.

9. Reconnect Plumbing: Reconnect the plumbing to the new pump, hand-tightening the union nuts. If you are gluing in new PVC tailpieces, use PVC primer and cement on those joints.

10. Reconnect Electrical Wiring: Reconnect the electrical wiring to the new pump, following the notes or pictures you took earlier. Make sure all wires are properly connected and secure.

11. Turn On the Power: Restore power to the hot tub by switching on the circuit breaker or reconnecting the disconnect switch.

12. Test the Pump: Turn on the hot tub's pump to ensure that it's working correctly. Check for any signs of leaks or irregularities in the plumbing connections.

13. Refill the Hot Tub: Once you've confirmed that the new pump is functioning properly, refill the hot tub with water.

14. Check for Leaks: Inspect the plumbing connections for any leaks. If you find any, turn off the pump, drain the tub again, and reseal the connections as needed.

15. Monitor: Keep an eye on the pump and plumbing for the next few days to ensure everything is functioning correctly and that there are no further issues.

Remember that this is a general guideline, and the specific steps may vary based on your hot tub's design. If you're unsure or uncomfortable with any aspect of this process, please do get in touch, happy to help.

How do I know what size hot tub pump I have?

Determining the size of your hot tub pump is an important step when it comes to maintenance or replacement. To find out the size of your hot tub pump, follow these steps:

1. Check the Manual: The easiest way to determine the size of your hot tub pump is to consult the owner's manual or user documentation that came with your hot tub. The manual typically contains detailed information about the specifications and components of your hot tub, including the pump.

2. Look at the Pump Housing: If you don't have access to the manual or it doesn't provide the information you need, inspect the pump itself. Most hot tub pumps have a label or plate on the pump housing that displays essential details, including the pump's model number, manufacturer, and specifications. You can then send that to me or Google it.

3. Measure the Pump: If the label is missing or damaged, you can measure the pump's dimensions. Measure the diameter of the pump's wet end (the part where the water flows) and the length of the wet end. These measurements can help identify the size and capacity of the pump.

4. Consult the Manufacturer: If you can't find the information on the pump or in the manual, contact the hot tub manufacturer or a reputable dealer. Provide them with your hot tub's model and serial number, and they should be able to identify the correct pump size for your specific hot tub.

5. Online Research: You can also search online using the pump's model number or hot tub's make and model. Many manufacturers provide detailed information about their products on their websites, and you may find specifications for your pump model.

Once you have determined the size and specifications of your hot tub pump, you can proceed with maintenance, repairs, or replacement if necessary. Keep in mind that replacing a hot tub pump with the same size and capacity as the original is crucial to ensure proper water circulation and filtration in your hot tub. If you're unsure about any aspect of this process, get in touch, always happy to help.