💦 LX JA35 Circulation Pump – 0.33 HP Single Speed

Compact, Energy-Efficient Circulation for Smaller Spas and Whirlpool Baths

♨️ Product Overview

The LX JA35 is a compact 0.33 HP single-speed circulation pump designed for hot tubs and whirlpool baths requiring efficient, low-power water circulation. Manufactured by LX, a trusted name in spa pump technology, the JA35 delivers a maximum flow rate of 150 litres per minute with an 8-metre head pressure, making it ideal for smaller spa systems and whirlpool bath applications.

Featuring a centre discharge design with self-draining capability, this pump protects your system by automatically draining when the motor shuts off. The thermally protected motor ensures reliable, long-lasting operation whilst drawing only 1.6 amps, making it one of the most energy-efficient circulation pumps available. The optional air switch facility allows for manual on/off control, particularly useful in whirlpool bath installations.

Commonly found in Chinese manufactured spas including AMC Winer Spa and Spa Serve, the JA35 provides efficient and reliable operation for spa and whirlpool systems where compact size and low energy consumption are priorities.

⭐ Key Features

✅ 0.33 HP Motor Power – Delivers 0.25 kW of efficient circulation power with minimal energy consumption

✅ Energy Efficient – Low 1.6 amp draw for cost-effective continuous operation

✅ Single Speed Operation – Reliable 2,900 RPM motor for consistent filtration duty

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

✅ Compact Dimensions – Space-saving 325 × 155 × 185 mm footprint

✅ 1.5″ Plumbing Connections – Universal suction and discharge ports

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

✅ 7µF Capacitor – Ensures reliable motor starting

✅ Optional Air Switch – Compatible with pneumatic button control for manual operation

✅ 150 L/min Flow Rate – Adequate circulation for smaller spa systems

🔧 Technical Specifications

Specification	Value
Pump Type	Circulation Pump
Motor Power	0.33 HP / 0.25 kW
Speed Settings	Single Speed
Flow Rate (Maximum)	150 L/min
Maximum Head	8 m
Amperage	1.6 A
Motor Speed	2,900 RPM
Wet End Configuration	1.5 inch Centre Discharge
Discharge Port	1.5 inch
Suction Port	1.5 inch
Port Position	Centre Discharge
Dimensions (L × W × H)	325 × 155 × 185 mm
Capacitor	7 µF
Thermal Protection	Built-in

⚡ Electrical Requirements

Electrical Specification	Requirement
Full Load Amperage	1.6 A
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 Discharge

This Pump Features:

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

Compatible Spa Brands:

✅ AMC Winer Spa
✅ Spa Serve
✅ Chinese manufactured spas

🛠️ 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

⚠️ 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 discharge design allows self-draining when motor is switched off

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🔧 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 1.6A 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

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🛁 Ideal Applications

Application	Suitability	Notes
♨️ Small Hot Tub Circulation	Excellent	Ideal for compact spas
♨️ Spa Filtration	Excellent	Energy-efficient continuous duty
🛁 Whirlpool Bath	Excellent	Compatible with air switch control
♨️ Low-Flow Heating Circulation	Good	Adequate for heating loop duties

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❓ Frequently Asked Questions

Q: What horsepower is the LX JA35 pump?

A: The LX JA35 is a 0.33 HP (0.25 kW) circulation pump with a single-speed motor running at 2,900 RPM.

Q: Will this pump fit my hot tub?

A: The JA35 features 1.5-inch suction and discharge ports with a centre discharge wet end. It’s commonly used in Chinese manufactured spas including AMC Winer Spa and Spa Serve. Verify your existing pump specifications before ordering.

Q: What is the amperage draw?

A: The JA35 draws only 1.6 amps, making it highly energy-efficient for continuous circulation duties.

Q: Can I use this pump with an air switch?

A: Yes, the JA35 features an optional air switch facility for manual on/off control, making it suitable for whirlpool bath installations.

Q: What is the maximum flow rate?

A: The JA35 delivers a maximum flow rate of 150 litres per minute with a maximum head of 8 metres.

Q: What size are the plumbing connections?

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

Q: Is this pump self-draining?

A: Yes, the centre discharge 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 JA35 uses a 7µF capacitor for reliable motor starting.

🏆 Why Choose the LX JA35

✅ Compact Size – Space-saving 325 × 155 × 185 mm dimensions

✅ Energy Efficient – Only 1.6 amp draw for low running costs

✅ Self-Draining Design – Centre discharge protects system when switched off

✅ Thermally Protected – Built-in motor protection for longevity

✅ Quiet Operation – Ideal for residential spa and whirlpool installations

✅ Air Switch Compatible – Optional manual control for whirlpool baths

✅ Proven Reliability – Trusted LX manufacturing quality

🤝 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 JA35 is a compact, energy-efficient 0.33 HP single-speed circulation pump delivering 150 L/min flow rate for smaller hot tubs and whirlpool baths. Drawing only 1.6 amps, it features 1.5-inch plumbing connections, centre discharge self-draining design, thermal motor protection, and optional air switch compatibility. Commonly used in Chinese manufactured spas including AMC Winer Spa and Spa Serve, it’s ideal where space and energy efficiency are priorities. Order from Parts4Tubs for fast UK delivery and expert support.