💦 Spa-Tec Superflow Plus 0.67HP Whirlpool Bath Pump – Self-Drain Pneumatic

Compact, efficient performance for smaller whirlpool bath systems across the UK

📋 Product Overview

The Spa-Tec Superflow Plus 0.67HP is a compact whirlpool bath pump widely fitted to domestic whirlpool systems throughout the United Kingdom. Delivering 0.50kW of efficient power, this self-draining circulation pump is specifically designed for smaller whirlpool bath installations where space is limited but reliable jet performance is essential.

This pump serves as a direct replacement for older Superflow pumps rated at 500W or 0.50kW, commonly identified by part number ALT2560N4B. Its popularity stems from widespread use in UK whirlpool bath manufacturing, making it one of the most commonly replaced pumps in the domestic market.

Featuring pneumatic activation via an integrated air switch, the Superflow Plus 0.67HP provides safe, convenient bath-side control. The motor runs at 2700 RPM with remarkably low 2.1A current draw, making it economical to operate whilst delivering consistent water flow to your whirlpool jets.

The self-draining design is crucial for whirlpool bath hygiene, ensuring no stagnant water remains in the pump after each use. Combined with 63mm connection diameter and male buttress thread fittings, this pump offers straightforward replacement for existing Spa-Tec Superflow installations.

✨ Key Features

✅ 0.67 Horsepower / 0.50kW Motor – Efficient power output perfectly sized for compact whirlpool bath systems

✅ Self-Draining Design – Automatically empties after use, preventing bacterial growth and maintaining hygiene standards

✅ Pneumatic Air Switch Activation – Safe touch-button control mounted on bath surround, isolated from water contact

✅ 2700 RPM Motor Speed – Consistent operation delivers reliable jet pressure for relaxing hydrotherapy

✅ Low 2.1 Amp Current Draw – Energy-efficient operation reduces running costs on standard domestic circuits

✅ 220-240V / 50Hz UK Electrical – Designed specifically for British mains supply compatibility

✅ 63mm Connection Diameter – Standard fitting size for Superflow plumbing system compatibility

✅ Male Buttress Thread Type – Secure, leak-free union connections to existing pipework

✅ 8µF Capacitor – Factory-fitted start capacitor for reliable motor starting

✅ Compact 310 × 155 × 180mm Dimensions – Space-saving footprint fits tight bath cabinet installations

✅ 3 Core AMP Cord Connection – Standard wiring termination for professional electrical installation

✅ Direct Replacement for ALT2560N4B – Drop-in fit for older Superflow 500W pumps

⚙️ Technical Specifications

Specification	Value
Manufacturer	Spa-Tec
Model	Superflow Plus
Part Number (MPN)	ALT2560N4B
SKU	PMP-3527
Pump Type	Circulation / Whirlpool Bath
Motor Power	0.67 HP
Power Output (P1)	0.50 kW
Speed Settings	Single Speed
Motor RPM	2700
Voltage	220-240 V
Frequency	50 Hz
Amperage	2.1 A
Capacitor Size	8 µF
Activation Type	Pneumatic (Air Switch)
Drain Type	Self-Draining
Connection Diameter	63 mm
Thread Type	Male – Buttress
Cord Type	3 Core AMP
Dimensions (L × W × H)	310 × 155 × 180 mm
Spare Parts Available	No (Complete unit replacement)

🔌 Electrical Requirements

Electrical Specification	Requirement
Supply Voltage	220-240 V
Frequency	50 Hz
Phase	Single Phase
Full Load Amperage	2.1 A
Capacitor	8 µF
Connection Type	3 Core AMP
Activation	Pneumatic Air Switch

⚠️ Important Electrical Safety Information

• RCD Protection – 30mA residual current device mandatory for bathroom installations
• Equipotential Bonding – All metal components must be properly earthed
• IP Rated Enclosure – Junction boxes must be suitable for bathroom zones
• Isolation Switch – Accessible isolation point required outside bath zone
• Fixed Wiring – No plug and socket connections permitted in bathroom zones 0, 1, or 2

⚠️ Never attempt DIY electrical work on whirlpool bath systems. Water and electricity are a lethal combination.

🔗 Compatibility Guide

Connection Specifications

Connection Point	Specification
Thread Type	Male – Buttress
Connection Diameter	63 mm
Union Size	1½” (Inch)

This Pump Is Designed For:

📍 System Type: Spa-Tec Superflow whirlpool bath systems 📍 Connection: 63mm diameter with male buttress thread unions 📍 Activation: Pneumatic air button systems 📍 Drain Configuration: Self-draining installations

Direct Replacement For:

This pump is a direct replacement for older Superflow pumps with:

• 500W / 0.50kW power rating
• Part number ALT2560N4B
• 63mm connection diameter
• Male buttress thread type

Before Ordering – Check Your Existing Pump:

1. Part number – Look for ALT2560N4B on your current pump label
2. Power rating – Confirm 500W or 0.50kW rating
3. Connection size – Measure union diameter (should be 63mm)
4. Thread type – Verify male buttress thread configuration
5. Physical space – Ensure 310 × 155 × 180mm will fit in your cabinet

🛠️ Installation Requirements

Mounting Position

Requirement	Specification
Mounting Orientation	Horizontal
Surface	Solid, level base with vibration dampening
Ventilation Clearance	Minimum 50mm around motor for cooling
Access Space	150mm minimum for maintenance access
Location	Below bath water level (flooded suction design)

Plumbing Connections

Connection	Specification
Union Type	Male Buttress Thread
Connection Diameter	63 mm
Union Size	1½” (Inch)

Installation Notes

⚠️ Pump must be installed below bath water level – Self-draining design requires gravity feed for proper drainage

⚠️ Never run the pump dry – Causes immediate seal damage and motor overheating

⚠️ Ensure proper bonding to earth – All metal components must be equipotentially bonded

⚠️ Check air switch tubing – Pneumatic line must be free from kinks or blockages

⚠️ Use appropriate sealant – Thread sealant tape on all threaded connections

⚠️ Test before enclosing – Run pump and check for leaks before completing cabinet installation

Pneumatic Air Switch Installation

The pump features integrated pneumatic activation:

1. Air button mounts on bath surround above water level
2. Flexible tubing connects button to pump air switch
3. Tubing must be continuous with no joints or damage
4. Maximum tubing length typically 3 metres
5. Ensure tubing routing avoids heat sources and sharp bends

🔄 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Notes
Visual leak inspection	Monthly	Check around seals and union connections
Union tightness check	Monthly	Hand-tighten only – do not over-tighten
Air button function test	Monthly	Press button and verify pump activation
Motor ventilation check	Quarterly	Ensure air vents free from dust and debris
Drain function verification	Quarterly	Confirm water drains completely after use
Professional electrical inspection	Annually	Check connections, earth continuity, RCD function

Operating Best Practices

💡 Run regularly – Operate whirlpool system at least weekly to prevent seal drying and bacterial growth

💡 Clean the bath – Use appropriate whirlpool bath cleaner monthly to prevent biofilm buildup

💡 Drain completely – Ensure self-drain function operates correctly after each use

💡 Monitor temperature – Avoid operating with excessively hot water (above 40°C) for extended periods

Warning Signs – When to Replace

Contact Parts4Tubs for replacement if you notice:

• ❌ Unusual noise – Grinding, screeching, or rattling sounds
• ❌ Water leaking from pump – Visible drips around seal area
• ❌ Reduced jet pressure – Noticeably weaker whirlpool action
• ❌ Motor trips breaker – Repeatedly cutting out on RCD
• ❌ Burning smell – Indicates motor winding failure
• ❌ Air button unresponsive – Pump fails to activate (check tubing first)
• ❌ Water not draining – Standing water indicates blocked drain path

Seal Information

Note: Spare parts are not separately available for this pump model. In the event of seal failure or internal component wear, complete pump replacement is required.

🛁 Ideal Applications

Application	Suitability	Notes
🛁 Compact whirlpool bath	✅ Ideal	Primary design application
🛁 Small bath systems (2-6 jets)	✅ Excellent	0.67HP provides adequate pressure
🛁 Spa-Tec component systems	✅ Direct fit	Designed for Superflow range
🛁 ALT2560N4B replacement	✅ Direct replacement	Drop-in fit for older pumps
🛁 Larger whirlpool baths (8+ jets)	⚠️ Limited	Consider 1.0HP or 1.3HP models
♨️ Hot tub circulation	❌ Not suitable	Not designed for continuous duty
♨️ Hot tub jet pump	❌ Not suitable	Insufficient power for hot tub jets

Power Sizing Guide

The 0.67HP Superflow Plus is rated for:

• Compact whirlpool baths – Standard single-person or small double baths
• 2-6 jet configurations – Adequate flow distribution for smaller systems
• Self-draining systems – Designed for intermittent use with complete drainage

For larger whirlpool installations requiring more power, consider:

• Superflow Plus 1.0HP – Medium-sized baths with 4-8 jets
• Superflow Plus 1.3HP – Larger baths with 8+ jets

💬 Frequently Asked Questions

Q: What horsepower is this pump? A: The Superflow Plus delivers 0.67HP motor power with 0.50kW electrical output, suitable for compact whirlpool bath systems.

Q: Will this pump fit my whirlpool bath? A: This pump features 63mm connection diameter with male buttress thread unions. It’s a direct replacement for older Superflow pumps with part number ALT2560N4B and 500W/0.50kW rating.

Q: What voltage does this pump require? A: 220-240V at 50Hz – standard UK mains supply. All electrical installation must be performed by a qualified electrician with proper RCD protection.

Q: Is this a single or dual speed pump? A: Single speed only, running at 2700 RPM. This provides consistent jet pressure without speed variation controls.

Q: How does the pneumatic activation work? A: An air button mounted on your bath surround sends an air pulse through tubing to the pump’s integrated air switch. Pressing the button toggles the pump on and off without any electrical contact near the water.

Q: What is self-draining and why does it matter? A: Self-draining pumps automatically empty residual water when the system stops. This is essential for hygiene in whirlpool baths, preventing stagnant water and bacterial growth in the pump and pipework between uses.

Q: Is this the right replacement for my ALT2560N4B pump? A: Yes, this Superflow Plus 0.67HP is a direct replacement for older Superflow pumps with part number ALT2560N4B and 500W or 0.50kW rating.

Q: What’s the difference between this and the 1.0HP version? A: The 0.67HP model delivers 0.50kW and draws 2.1A, suitable for smaller baths with fewer jets. The 1.0HP model delivers 1.13kW and draws 3.9A, better suited for medium-sized baths with more jets.

Q: What warranty is included? A: Manufacturer’s standard 1-year warranty. Extended warranty options (additional 1 year) available at time of purchase.

Q: Are spare parts available? A: Individual spare parts are not available for this pump model. In the event of seal failure or internal component wear, complete pump replacement is recommended.

Q: My pump isn’t starting – what should I check? A: First verify the air button tubing isn’t kinked, disconnected, or damaged. Check the RCD hasn’t tripped. Check the capacitor (8µF) hasn’t failed. If the pneumatic system appears intact, the pump may require replacement.

⭐ Why Choose the Spa-Tec Superflow Plus 0.67HP

✅ Proven UK Track Record – Very common pump fitted to many whirlpool systems throughout the United Kingdom

✅ Energy Efficient – Low 2.1A current draw and 0.50kW power consumption reduces running costs

✅ Compact Design – 310 × 155 × 180mm footprint fits tight installation spaces

✅ Direct Replacement – Drop-in fit for ALT2560N4B pumps with no plumbing modifications

✅ Safe Pneumatic Control – Air switch technology keeps electrical controls away from water

✅ Hygienic Self-Draining – Automatic drainage prevents standing water and bacterial growth

✅ UK Electrical Compatibility – Designed for 220-240V/50Hz British mains supply

✅ Manufacturer Warranty – Standard warranty with extended options available

🤝 Why Buy from Parts4Tubs

✅ UK-Based Company – Local support from our expert team

✅ Fast UK Delivery – Quick dispatch to get your whirlpool bath running again

✅ Expert Technical Advice – Speak to specialists who understand whirlpool bath systems

✅ Competitive Pricing – Great value on genuine Spa-Tec components

✅ Full Warranty Support – We handle any warranty issues directly

✅ Easy Returns – Hassle-free 30-day return policy

✅ Compatibility Guidance – We’ll help ensure you order the correct pump

💧 Summary

The Spa-Tec Superflow Plus 0.67HP is a compact, energy-efficient whirlpool bath pump delivering 0.50kW of reliable power for smaller domestic installations. This very common UK pump serves as a direct replacement for older Superflow models with part number ALT2560N4B. Featuring self-draining capability, pneumatic air switch activation, and 63mm male buttress thread connections, this single-speed pump provides consistent jet performance with hygienic operation. Contact Parts4Tubs for expert advice and fast UK delivery.