🔌 Waterway 56-Frame Jet Pump – 2.0 HP Dual Speed – 2″ x 2″ Connections

Energy-efficient two-speed operation for heating and powerful boost jets

♨️ Product Overview

The Waterway 2.0 HP 56-Frame Dual Speed Pump is a versatile jet pump designed for both heating circulation and boost jet operation in hot tubs. Featuring a two-speed motor with 0.53 HP at low speed and 2.14 HP at high speed, paired with a 4 HP-rated wet-end impeller, this pump delivers reliable performance for a wide range of hydrotherapy applications.

Operating at 230V/50Hz, the pump provides efficient dual-speed operation. Low speed runs at 1,450 RPM drawing just 1.8A for quiet heating circulation, whilst high speed runs at 2,850 RPM drawing 9A for powerful jet performance. The split-capacitor design (16 µF for low speed, 30 µF for high speed) ensures reliable starting and operation on both speeds.

The pump features standard 2-inch x 2-inch Waterway union connections (sold separately), providing excellent compatibility with many hot tub brands including Hot Tubs Direct, Knightswood Leisure, Touch Spas, Catalina, Clearwater Spas, Hydropool, Hotspring, Hotspot, and Southwest Spas. This pump can replace pumps from Waterway, Vico, Sta-Rite, GE, Emerson, A.O Smith, ITT, and Aqua-flo – in most cases the unions will wind straight on. Electrical connection requires 2 x live, 1 x neutral, and 1 x earth. No electrical cable is supplied – your existing wiring must be reused.

⭐ Key Features

✅ Dual Speed Motor – Low speed for heating, high speed for jets

✅ 4 HP Wet-End Impeller – Oversized for excellent flow

✅ 56-Frame Design – Larger motor for better cooling and longevity

✅ 0.53 HP / 2.14 HP – Motor power at low/high speeds

✅ 1,450 / 2,850 RPM – Dual speed motor operation

✅ 230V / 50Hz – UK standard electrical supply

✅ Split Capacitor – 16 µF (low) / 30 µF (high) for reliable operation

✅ 2″ x 2″ Connections – Standard spa plumbing size

✅ Universal Compatibility – Replaces multiple pump brands

✅ Energy Efficient – Low speed draws just 1.8A

⚙️ Technical Specifications

Specification	Value
Pump Type	Massage / Jet Pump – Dual Speed
Brand	Waterway
Frame Size	56-Frame
Wet-End Impeller Rating	4 HP
Motor Power (Low Speed)	0.53 HP
Motor Power (High Speed)	2.14 HP
Power (kW)	1.5 kW (high speed)
Speed Settings	Dual Speed
Voltage	230 V
Frequency	50 Hz
Amperage (Low Speed)	1.8 A
Amperage (High Speed)	9 A
RPM (Low Speed)	1,450 RPM
RPM (High Speed)	2,850 RPM
Capacitor (Low Speed)	16 µF
Capacitor (High Speed)	30 µF
Plumbing Size	2 inch x 2 inch (2″ x 2″)
Unions	Sold separately (Waterway 2″)
Electrical Cable	Not supplied – reuse existing
Wiring Required	2 x live, 1 x neutral, 1 x earth
Length	430 mm
Width (Depth)	200 mm
Height	240 mm

⚡ Electrical Requirements

Electrical Specification	Low Speed	High Speed
Supply Voltage	230 V	230 V
Frequency	50 Hz	50 Hz
Motor Power	0.53 HP	2.14 HP
Full Load Amps	1.8 A	9.0 A
Motor Speed	1,450 RPM	2,850 RPM
Capacitor	16 µF	30 µF

Component	Specification
Electrical Cable	Not supplied – reuse existing
Wiring Configuration	2 x live, 1 x neutral, 1 x earth
Recommended MCB	16 A minimum
Recommended Cable	2.5 mm² minimum

⚠️ IMPORTANT ELECTRICAL SAFETY:

All electrical work must be carried out by a qualified electrician in accordance with UK wiring regulations (BS 7671). Hot tubs require RCD protection (30mA). Ensure proper earthing and bonding of all electrical components. Two-speed pumps require appropriate wiring for both speed windings (2 x live connections) – consult a qualified electrician. The electrical cable is not supplied – your existing wiring from the previous pump must be reused and inspected before connection.

🔗 Compatibility Guide

This Pump Specifications:

📍 Model: Waterway 56-Frame 2.0HP 2-Speed 📍 Motor: 0.53 HP (low) / 2.14 HP (high) 📍 Wet-End: 4 HP impeller rating 📍 Frame: 56-Frame 📍 Voltage: 230V / 50Hz 📍 Current: 1.8A (low) / 9.0A (high) 📍 Plumbing: 2 inch x 2 inch 📍 Dimensions: 430mm × 200mm × 240mm

Two-Speed Advantage:

Speed	RPM	HP	Amps	Use
Low	1,450	0.53	1.8	Heating circulation
High	2,850	2.14	9.0	Boost jets

Compatible Hot Tub Brands:

This pump is commonly used with:

• Hot Tubs Direct
• Knightswood Leisure
• Touch Spas
• Catalina
• Clearwater Spas
• Hydropool
• Hotspring
• Hotspot
• Southwest Spas
• And many more…

Cross-Compatible Pump Brands:

This pump can replace pumps from:

• Waterway
• Vico
• Sta-Rite
• GE
• Emerson
• A.O Smith
• ITT
• Aqua-flo

In most cases, the unions will wind straight on for easy replacement.

Application:

This pump is designed to run low speed for heating circulation and high speed for boost jet operation.

🛠️ Installation Requirements

Pump Dimensions:

Dimension	Measurement
Length	430 mm
Width (Depth)	200 mm
Height	240 mm

Plumbing Connections:

Connection	Size	Notes
Suction	2 inch	Waterway unions (sold separately)
Discharge	2 inch	Waterway unions (sold separately)

Installation Notes:

⚠️ Unions sold separately – order Waterway 2″ unions

⚠️ Electrical cable NOT supplied – reuse existing wiring

⚠️ Two-speed motor requires correct wiring: 2 x live, 1 x neutral, 1 x earth

⚠️ Split capacitor design (16 µF + 30 µF)

⚠️ Pump must be installed below water level (flooded suction)

⚠️ Never run the pump dry

⚠️ Ensure proper electrical bonding to earth

💡 56-frame design provides enhanced motor cooling

💡 Universal compatibility with multiple pump brands

💡 Check union compatibility before installation

🔄 Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Inspect unions and pump seal
Test both speeds	Monthly	Verify low and high speed operation
Check motor operation	Weekly	Listen for unusual sounds
Verify jet performance	Monthly	Ensure strong water flow on high
Inspect wiring	Annually	Check all connections
Clean pump strainer	As needed	Remove debris

Warning Signs – Consider Replacement If:

• One speed stops working (possible winding or capacitor failure)
• Motor hums but doesn’t start
• Unusual noise or vibration
• Motor overheating
• Significantly reduced jet/flow power
• Pump trips the circuit breaker
• Visible seal leakage

Capacitor Information:

The 2-Speed uses a split-capacitor design:

• 16 µF capacitor (low speed)
• 30 µF capacitor (high speed)

Both capacitors must be functioning correctly for reliable two-speed operation.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Heating Circulation	Excellent	Low speed for 24/7 operation
♨️ Boost Jets	Excellent	High speed for hydrotherapy
♨️ Energy Efficiency	Excellent	Low speed draws just 1.8A
♨️ Pump Replacement	Excellent	Universal compatibility
♨️ Multi-Jet Systems	Yes	4 HP wet-end handles demand
♨️ Medium-Large Spas	Yes	Versatile dual-speed operation

❓ Frequently Asked Questions

Q: What is the power rating of this pump? A: The pump has a 4 HP-rated wet-end impeller. The motor produces 0.53 HP at low speed and 2.14 HP at high speed, drawing 1.8A (low) and 9.0A (high) at 230V/50Hz.

Q: What are the two speeds used for? A: Low speed (1,450 RPM) is used for heating circulation – running continuously to maintain water temperature. High speed (2,850 RPM) delivers powerful jet performance for hydrotherapy and boost operation.

Q: How much power does each speed use? A: Low speed draws just 1.8A for efficient 24/7 operation, whilst high speed draws 9.0A for maximum jet power.

Q: What size are the plumbing connections? A: The pump uses 2-inch x 2-inch (2″ x 2″) connections with standard Waterway unions, which are sold separately.

Q: Does this pump come with unions? A: No, the Waterway 2″ unions are sold separately.

Q: Does this pump come with an electrical cable? A: No, the electrical cable is not supplied. You must reuse the existing wiring from your previous pump.

Q: What wiring does this pump require? A: The pump requires 2 x live (one for each speed winding), 1 x neutral, and 1 x earth connections.

Q: What capacitors does this pump use? A: The 2-Speed uses a split-capacitor design with 16 µF for low speed and 30 µF for high speed.

Q: How does this compare to the single-speed version? A: The 2-speed version offers the advantage of energy-efficient heating circulation on low speed (1.8A), switching to full jet power only when needed. Single-speed pumps run at full power continuously.

Q: What hot tub brands is this pump compatible with? A: The pump is commonly used with Hot Tubs Direct, Knightswood Leisure, Touch Spas, Catalina, Clearwater Spas, Hydropool, Hotspring, Hotspot, Southwest Spas, and many more.

Q: Can this pump replace other brands? A: Yes, this pump can replace pumps from Waterway, Vico, Sta-Rite, GE, Emerson, A.O Smith, ITT, and Aqua-flo. In most cases, the unions will wind straight on.

🏆 Why Choose the Waterway 2.0 HP 56-Frame Dual Speed Jet Pump

✅ Versatile Two-Speed Operation – Heating circulation plus boost jets

✅ 4 HP Wet End – Excellent flow capacity

✅ Energy Efficient – Low speed draws just 1.8A

✅ 56-Frame Construction – Superior cooling and longevity

✅ Powerful High Speed – 2.14 HP / 2,850 RPM for jets

✅ Quiet Low Speed – 0.53 HP / 1,450 RPM for circulation

✅ Universal Compatibility – Replaces multiple pump brands

✅ Multi-Brand Fit – Works with many hot tub manufacturers

🤝 Why Buy From Parts4Tubs

✅ UK-based company with expert local support

✅ Fast UK delivery options available

✅ Knowledgeable advice from spa industry specialists

✅ Competitive pricing

✅ Full warranty support

✅ Replacement seals, capacitors, and unions available

✅ Easy returns within 30 days

✨ Summary

The Waterway 2.0 HP 56-Frame Dual Speed Pump is a versatile jet pump designed for both heating circulation and boost jet operation in hot tubs. Features a two-speed motor with 0.53 HP at low speed (1,450 RPM, 1.8A) and 2.14 HP at high speed (2,850 RPM, 9.0A), paired with a 4 HP-rated wet-end impeller. Operating at 230V/50Hz with split-capacitor design (16 µF + 30 µF). Uses low speed for energy-efficient heating circulation and high speed for powerful boost jets. Features 2″ x 2″ Waterway union connections (sold separately). Electrical wiring requires 2 x live, 1 x neutral, 1 x earth – cable not supplied. Compatible with Hot Tubs Direct, Knightswood Leisure, Touch Spas, Catalina, Clearwater Spas, Hydropool, Hotspring, Hotspot, Southwest Spas, and many more. Dimensions: 430mm × 200mm × 240mm. An excellent choice for versatile hot tub jet replacement with energy-efficient operation.

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	1.5 inch Union O-Ring	£1.55 Max: 55 Min: 1 Step: 1 Add to cart
	2 inch Union O-Ring	£1.55 Max: 100 Min: 1 Step: 1 Add to cart
	2 to 1.5 inch Threaded Union Adapter	£7.27 Max: 52 Min: 1 Step: 1 Add to cart
	2.5 inch Union O-Ring	£1.55 Max: 100 Min: 1 Step: 1 Add to cart
	2.5 inch Waterway Union with 2 inch Tailpiece	£9.69 Max: 34 Min: 1 Step: 1 Add to cart
	4 pin Amp cord (Dual Speed Pump)	£18.06 Max: 6 Min: 1 Step: 1 Add to cart

The hot tub industry doesnt make it easy for you when you are trying to match up the size of the unions (the part that screws your pipe work onto the pumps) Below you can see the physical sizes of the collars, and how they relate to the actual union size you need. So a measurement of 2.5", edge to edge on the collar of the pump is actually a 1.5" union - confusing - absolutely! If you are not sure, give me a shout!

Hot Tub Pump Collar & Union Size Chart

Imperial & Metric Specifications

Union Size	Collar Size	Thread OD	Union OD	O-Ring Size
1.5" Female Buttress Thread (FBT)	2.5" / 64mm (Tip to Tip) Measurement	2-1/2" 64mm	2-13/16" 71mm	2-5/16" OD 59mm
2" Female Buttress Thread (FBT)	3.1" / 78mm (Tip to Tip) Measurement	3-1/16" 78mm	3-3/8" 81mm	2-15/16" OD 75mm
2.5" Female Buttress Thread (FBT)	3.6" / 91mm (Tip to Tip) Measurement	3-5/8" 91mm	4-1/4" 108mm	3-7/16" OD 87mm

Important Notes

The union "size" (1.5", 2", 2.5") is nominal and doesn't correspond to any actual measurement.

Collar size is measured from thread tip to thread tip on the pump outlet.

Most hot tub pumps use Female Buttress Thread (FBT) - 98% of applications.

O-ring gaskets may vary between manufacturers - measure your existing gasket for accuracy.

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
• Pipe wrench
• Adjustable wrench
• Screwdriver
• Pipe sealant (thread tape or plumber's putty)
• PVC primer and cement (if you have PVC plumbing)
• Teflon tape (for threaded connections)

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. Use a pipe wrench or adjustable wrench to loosen and remove the fittings. 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. Ensure that you use the appropriate sealant or Teflon tape on threaded connections to prevent leaks.
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, ensuring that all connections are tight and secure. If your hot tub uses PVC plumbing, use PVC primer and cement to bond the connections properly.
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.