🔧 LX WTC50M Centre Suction Circulation Pump – 0.33 HP (Storm Force 1)

Reliable, Energy-Efficient Circulation for 24-Hour Filtration Systems

♨️ Product Overview

The LX WTC50M is a powerful and efficient 0.33 HP circulation pump designed to keep your hot tub water crystal clear and perfectly circulated. This reliable pump serves as the heart of your hot tub’s circulation system, ensuring that your spa water stays clean and hygienic at all times.

This is a direct replacement for the Spa Command Storm Force 1 Pump.

Whether you’re upgrading your existing system or replacing a worn-out pump, this LX model is an excellent choice for many hot tub setups, particularly Chinese-made spas and similar models. With its robust 0.33 HP motor running at a quiet 1,400 RPM, this pump efficiently circulates water through your hot tub’s filtration system whilst operating at whisper-quiet levels perfect for 24-hour filtration.

Operating at 230V and 50Hz, this pump is designed with energy efficiency in mind. Its low 1 amp draw means it won’t significantly impact your energy bills while still providing excellent circulation power. The standard 1.5-inch plumbing connections ensure easy installation in most setups, and unions are included to make installation a breeze.

✨ Key Features

✅ 0.33 HP Motor Power – Delivers 0.25 kW of efficient circulation power

✅ Whisper-Quiet 1,400 RPM – Low-speed motor ideal for 24-hour filtration

✅ Energy Efficient – Only 1 amp draw at 230V/50Hz operation

✅ Storm Force 1 Replacement – Direct drop-in for Spa Command Storm Force 1

✅ Centre Suction Design – Self-draining capability protects system

✅ High Flow Rate – 240 L/min maximum for effective filtration

✅ 1.5″ Plumbing Connections – Universal suction and discharge ports

✅ Unions Included – Easy installation with included fittings

✅ Thermal Motor Protection – Built-in protection for reliable operation

✅ 7µF Capacitor – Ensures reliable motor starting

✅ Plain Cable Attached – Flexible electrical connection options

⚙️ Technical Specifications

Specification	Value
Pump Type	Circulation Pump
Motor Power	0.33 HP / 0.25 kW
Speed Settings	Single Speed
Voltage	230V
Frequency	50Hz
Flow Rate (Maximum)	240 L/min
Maximum Head	3.8 m
Amperage	1.0 A
Motor Speed	1,400 RPM
Wet End Configuration	1.5 inch Centre Suction
Discharge Port	1.5 inch
Suction Port	1.5 inch
Port Position	Centre Suction
Dimensions (L × W × H)	295 × 170 × 190 mm
Capacitor	7 µF
Thermal Protection	Built-in
Cable	Plain cable attached

⚡ Electrical Requirements

Electrical Specification	Requirement
Supply Voltage	230V
Frequency	50Hz
Full Load Amperage	1.0 A
Motor Power	0.25 kW
Capacitor Rating	7 µF
Motor Protection	Thermally protected
Cable Type	Plain cable attached

⚠️ IMPORTANT ELECTRICAL SAFETY NOTICE:

All electrical work must be carried out by a qualified electrician in accordance with UK wiring regulations (BS 7671). Hot tubs and spas require RCD protection (30mA) for safety. Never attempt electrical installation yourself unless you are a qualified professional. Incorrect installation may invalidate warranty and poses serious safety risks.

🔗 Compatibility Guide

Plumbing Specifications

Connection	Size
Suction Port	1.5 inch
Discharge Port	1.5 inch
Wet End Style	Centre Suction
Union Collar Size	2.5 inch / 64mm (tip to tip)

This Pump Features:

📍 Wet End: 1.5 inch centre suction
📍 Discharge: 1.5 inch
📍 Suction: 1.5 inch
📍 Design: Self-draining capability
📍 Unions: Included for easy installation

Direct Replacement For:

✅ Spa Command Storm Force 1 Pump

Compatible Spa Types:

✅ Chinese-manufactured spas
✅ Various hot tub models with 1.5″ plumbing
✅ Spas requiring 24-hour filtration circulation

🛠️ Installation Requirements

Mounting Specifications

Requirement	Specification
Mounting Position	Horizontal
Base	Solid, level, vibration-dampening surface
Ventilation	Adequate clearance for motor cooling
Access	Sufficient space for maintenance
Dimensions	295 × 170 × 190 mm – suitable for most spa cabinets

Plumbing Connections

Connection	Size
Suction	1.5 inch
Discharge	1.5 inch
Unions	Included

Installation Notes

⚠️ Unions are included with this pump, making installation straightforward

⚠️ Plain cable attached allows for flexible electrical connection options

⚠️ Centre suction design – note the plumbing orientation

⚠️ Pump must be installed below water level (flooded suction) to ensure proper priming

⚠️ Never run the pump dry – this causes seal damage and potential motor failure

⚠️ Always ensure that a qualified electrician handles the electrical connections

🔧 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Notes
Clean hot tub filters	Regularly	Prevents strain on the pump
Check for leaks	Monthly	Inspect pump and surrounding areas
Check for unusual noises	Monthly	Early warning of potential issues
Ensure proper water chemistry	Ongoing	Prevents corrosion and scale buildup
Schedule maintenance check	Annually	Catch potential issues early
Check amperage draw	Annually	Should match 1.0A rating

Warning Signs – Replace Pump If:

⚠️ Unusual noise such as grinding, screeching, or humming
⚠️ Water leaking from the seal area
⚠️ Motor trips the circuit breaker repeatedly
⚠️ Significantly reduced water flow
⚠️ Motor overheating or shutting down on thermal protection

🛁 Ideal Applications

Application	Suitability	Notes
♨️ 24-Hour Filtration	Excellent	Quiet 1,400 RPM for continuous operation
♨️ Spa Circulation	Excellent	240 L/min ensures effective water movement
♨️ Heater Circulation	Good	Maintains water flow through heater
♨️ Chinese-Made Spas	Excellent	Designed for compatibility
♨️ Storm Force 1 Replacement	Excellent	Direct drop-in replacement

❓ Frequently Asked Questions

Q: What horsepower is the LX WTC50M pump?

A: The LX WTC50M is a 0.33 HP (0.25 kW) circulation pump with a quiet single-speed motor running at 1,400 RPM, making it ideal for 24-hour filtration systems.

Q: Is this pump really quiet?

A: Yes, the WTC50M runs at only 1,400 RPM, significantly slower than standard circulation pumps. This low-speed operation makes it perfect for continuous 24-hour filtration without disturbing spa users.

Q: Will this replace my Storm Force 1 pump?

A: Yes, this is a direct replacement for the Spa Command Storm Force 1 Pump. It features matching specifications and connections.

Q: What is the amperage draw?

A: The WTC50M draws only 1 amp at 230V/50Hz, making it highly energy-efficient for continuous operation without significantly impacting your energy bills.

Q: What is the maximum flow rate?

A: The WTC50M delivers a maximum flow rate of 240 litres per minute with a maximum head of 3.8 metres.

Q: What size are the plumbing connections?

A: Both suction and discharge ports are 1.5 inches. The pump features a centre suction configuration with self-draining capability. Unions are included for easy installation.

Q: Are unions included with this pump?

A: Yes, unions are included to make installation straightforward. The pump also comes with a plain cable attached for flexible electrical connection options.

Q: Is this pump self-draining?

A: Yes, the centre suction design allows the pump to self-drain when the motor is switched off, protecting the system from potential damage.

Q: How do I know if I have a 1.5″ union size?

A: Measure the collar tip to tip on your existing pump. A measurement of 2.5 inches (64mm) indicates a 1.5″ union size.

🏆 Why Choose the LX WTC50M

✅ Reliable Performance – Built to deliver consistent, dependable operation

✅ Energy Efficient – Only 1A draw won’t significantly impact energy bills

✅ Whisper-Quiet – 1,400 RPM for peaceful 24-hour filtration

✅ High Flow Performance – 240 L/min with 3.8m head pressure

✅ Centre Suction Design – Self-draining capability

✅ Storm Force 1 Compatible – Direct drop-in replacement

✅ Unions Included – Easy installation

✅ Thermally Protected – Built-in motor protection with 7µF capacitor

✅ Versatile Application – Compatible with wide range of hot tub models

🤝 Why Buy From Parts4Tubs

✅ UK-Based Company – Local support from knowledgeable spa specialists

✅ Fast UK Delivery – Quick despatch to get your spa running again

✅ Expert Advice – Our team can help with compatibility questions

✅ Competitive Pricing – Trade-quality parts at fair prices

✅ Full Warranty Support – Comprehensive warranty backing

✅ Easy Returns – Hassle-free returns within 30 days if unused

✅ Replacement Parts Available – Seals, capacitors, and spares in stock

⭐ Summary

The LX WTC50M is a reliable, energy-efficient 0.33 HP circulation pump delivering 240 L/min flow rate with 3.8m head pressure, designed for 24-hour filtration in hot tubs and spas. Running at a whisper-quiet 1,400 RPM and drawing only 1 amp at 230V/50Hz, it features 1.5-inch plumbing connections, centre suction self-draining design, thermal motor protection with 7µF capacitor, and compact 295 × 170 × 190 mm dimensions. A direct replacement for the Spa Command Storm Force 1 pump, it comes with unions included and plain cable attached for easy installation. Perfect for Chinese-manufactured spas and similar models. Order from Parts4Tubs for fast UK delivery and expert support.

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!

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.