🌟 LX WTC100 Circulation Pump – 1.0 HP Single Speed

Compact, Powerful Circulation for Hot Tubs and Whirlpool Systems

♨️ Product Overview

The LX WTC100 is a powerful 1.0 HP single-speed circulation pump designed for hot tubs and whirlpool baths. Its compact design and efficient performance make it suitable for various spa systems where reliable water circulation is essential.

Manufactured by LX, a trusted name in spa pump technology, the WTC100 delivers 0.75 kW of circulation power whilst drawing 3.8 amps. The compact dimensions of just 290 × 160 × 200 mm make this pump ideal for tight equipment spaces, whilst the 1.5-inch plumbing connections offer easy installation in a wide range of spa systems.

Featuring a centre suction design with self-draining capability, this pump automatically drains when the motor shuts off, protecting both the pump and your system from potential damage. The thermally protected motor with 7µF capacitor ensures reliable, long-lasting operation.

Commonly used in Chinese-manufactured spas, the WTC100 is a reliable and efficient choice for water circulation in spa and whirlpool systems.

✨ Key Features

✅ 1.0 HP Motor Power – Delivers 0.75 kW of strong circulation power

✅ Compact Design – Space-saving 290 × 160 × 200 mm footprint

✅ Single Speed Operation – Reliable motor for consistent circulation duty

✅ Self-Draining Design – Centre suction enables automatic draining when pump stops

✅ 1.5″ Plumbing Connections – Universal suction and discharge ports

✅ Thermal Motor Protection – Built-in protection extends motor lifespan

✅ 7µF Capacitor – Ensures reliable motor starting

✅ Efficient Performance – 3.8A draw for solid 1.0 HP output

✅ Proven WTC Series – Part of LX’s established circulation pump range

✅ Quality Construction – Trusted LX manufacturing standards

🔧 Technical Specifications

Specification	Value
Pump Type	Circulation Pump
Motor Power	1.0 HP / 0.75 kW
Speed Settings	Single Speed
Amperage	3.8 A
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)	290 × 160 × 200 mm
Capacitor	7 µF
Thermal Protection	Built-in

⚡ Electrical Requirements

Electrical Specification	Requirement
Full Load Amperage	3.8 A
Motor Power	0.75 kW
Capacitor Rating	7 µF
Motor Protection	Thermally protected

⚠️ 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

This Pump Features:

📍 Wet End: 1.5 inch centre suction
📍 Discharge: 1.5 inch
📍 Suction: 1.5 inch
📍 Design: Self-draining capability

Compatible Spa Types:

✅ Chinese-manufactured spas
✅ Various spa brands with 1.5″ plumbing

🛠️ 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

Plumbing Connections

Connection	Size
Suction	1.5 inch
Discharge	1.5 inch

Installation Notes

⚠️ This pump features 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

⚠️ Ensure proper electrical bonding to earth in accordance with BS 7671

⚠️ Centre suction design allows self-draining when motor is switched off

🔧 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Notes
Check for leaks	Monthly	Inspect around seal and union connections
Inspect unions	Monthly	Tighten if necessary
Clean strainer/filter	As needed	Remove debris to maintain flow rate
Check amperage draw	Annually	Should match 3.8A rating
Inspect motor vents	Quarterly	Keep clear of debris
Check mounting bolts	Quarterly	Tighten if loose

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
♨️ Hot Tub Circulation	Excellent	1.0 HP for reliable circulation
♨️ Spa Filtration	Excellent	Efficient continuous duty
🛁 Whirlpool Bath	Good	Suitable for bath circulation
♨️ Heating Circulation	Good	Maintains water flow through heater

❓ Frequently Asked Questions

Q: What horsepower is the LX WTC100 pump?

A: The LX WTC100 is a 1.0 HP (0.75 kW) circulation pump with a single-speed motor.

Q: Will this pump fit my hot tub?

A: The WTC100 features 1.5-inch suction and discharge ports with a centre suction wet end design. It’s commonly used in Chinese-manufactured spas. Verify your existing pump specifications before ordering.

Q: What is the amperage draw?

A: The WTC100 draws 3.8 amps, providing solid 1.0 HP circulation performance.

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.

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: What capacitor does this pump use?

A: The WTC100 uses a 7µF capacitor for reliable motor starting.

Q: What is the difference between centre suction and centre discharge?

A: The WTC100 features centre suction design, meaning water enters through the centre of the wet end. This is different from centre discharge pumps where water exits through the centre. Ensure you match the configuration of your existing pump.

Q: How does the WTC100 compare to the TDA100?

A: Both are 1.0 HP pumps with 0.75 kW power and 3.8A draw. The key difference is the WTC100 has centre suction design whilst the TDA100 has centre discharge. The WTC100 also uses a 7µF capacitor vs the TDA100’s 15µF capacitor. Check your existing pump’s configuration before ordering.

🏆 Why Choose the LX WTC100

✅ Powerful 1.0 HP Performance – Strong circulation power for effective filtration

✅ Compact Design – 290 × 160 × 200 mm fits tight spaces

✅ Centre Suction Configuration – Matches many spa systems

✅ Self-Draining Design – Protects system when switched off

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

✅ Efficient Operation – 3.8A draw for reliable performance

✅ Quality Construction – Trusted LX manufacturing standards

✅ Wide Compatibility – Suits various Chinese-manufactured spas

🤝 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 WTC100 is a powerful 1.0 HP single-speed circulation pump delivering 0.75 kW of circulation power for hot tubs and whirlpool baths. Drawing 3.8 amps, it features 1.5-inch plumbing connections, centre suction self-draining design, thermal motor protection with 7µF capacitor, and compact 290 × 160 × 200 mm dimensions. Commonly used in Chinese-manufactured spas, it provides reliable and efficient water circulation. 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.