🌊 Waterco HF Alphaflo 150 – 1.5HP Single Phase Pool Pump

🔌 Powerful 1.5HP IE3 Motor with Unique Motor Safeguarding Design – 29.8 m³/h Max Flow, Engineered for Durability & Performance

📋 Product Overview

The Waterco HF Alphaflo 150 is a powerful, high-efficiency self-priming pool pump designed for medium to large residential pools and demanding filtration systems. Delivering an impressive 23 m³/h flow at 10m head and a maximum flow rate of 29.8 m³/h, this 1.5HP single-phase pump provides the muscle needed for pools with heating circuits, in-floor cleaning, water features, and extended pipe runs – all while maintaining IE3-exceeding efficiency (>80%).

What truly distinguishes the Alphaflo from every competitor is Waterco’s unique motor safeguarding design. In conventional pumps, a worn mechanical seal allows water to travel up the drive shaft and destroy the motor in a very short period. The Alphaflo’s exceptional design effectively channels any leaks from worn seals away from the pump, protecting the motor’s end shield from water contact. This means a worn seal becomes a simple maintenance task – not an expensive motor replacement.

The pump features a newly designed impeller and diffuser that improves water flow and reduces head loss, while the pump body has been specially designed to enhance water flow and minimise operating noise by reducing turbulence. A heavy-duty pump bracket and insulation further absorb motor vibration. Built with a strong single-piece glass-filled thermoplastic body, high-grade 316 stainless steel mechanical seal compatible with chlorinated water, ozone, iodine, Baquacil, bromine and salt water, and a 303 grade stainless steel motor shaft, the Alphaflo 150 is built to deliver season after season. Backed by Waterco’s 3-year conditional warranty.

⭐ Key Features

✅ Unique Motor Safeguarding Design – Waterco’s exclusive innovation channels water leaks from worn mechanical seals away from the motor, preventing catastrophic motor failure and extending pump life far beyond conventional designs

✅ Powerful 1.5HP Output – Delivers 29.8 m³/h maximum flow and 20.5m maximum head, providing ample power for larger pools with heating, cleaning and water feature systems

✅ IE3 High Efficiency Motor (>80%) – Exceeds IE3 efficiency standard, keeping power consumption to just 1.614 kW for 1.5HP output – genuine energy savings compared to less efficient competitors

✅ Redesigned Impeller & Diffuser – Eliminates constrictions and obstacles, maximising hydraulic output while minimising turbulence for improved flow performance and shorter filtration run times

✅ 316 Stainless Steel Mechanical Seal – High-grade corrosion protection suitable for chlorinated water, ozone, iodine, Baquacil, bromine and salt water systems

✅ 303 Grade Stainless Steel Motor Shaft – Premium-grade shaft material resists corrosion in demanding wet environments, ensuring long motor life

✅ Thermal Overload Protection – Built-in safety automatically shuts down the pump in case of high amperage or overheating, preventing motor damage during unattended operation

✅ Reduced Noise Design (~64-66 dBA) – Pump body specially engineered to reduce water turbulence, plus heavy-duty bracket and insulation absorbs motor vibration

✅ Strong Single-Piece Pump Body – Glass-filled thermoplastic construction with integrated strainer pot and volute for maximum strength and durability

✅ Clear Basket Lid – Transparent lid allows easy visual inspection of the 2.05L strainer basket without disassembly

✅ Quick Connect Barrel Unions – 50mm UPVC pipe unions (40/50mm) included for straightforward installation

✅ Stable & Insulated Support Base – Heavy-duty base provides secure mounting while further reducing vibration and noise transfer

🔧 Technical Specifications

Specification	Detail
Model	HF Alphaflo 150
Product Code	248150EUM
Output Power (P2)	1.5 HP
Input Power	1.614 kW
Motor Input Power (Rated)	1.473 kW
Amperage	6.9 A
Motor Current (Rated)	6.8 A
Power Supply	Single Phase 220-240V
Frequency	50 Hz
Nominal Speed	2850 RPM
Flow Rate @ 8m Head	430 lpm (25.8 m³/h)
Flow Rate @ 10m Head	390 lpm (23.4 m³/h)
Maximum Flow Rate (Qmax)	29.8 m³/h
Maximum Head (Hmax)	20.5 m
Minimum Head (Hmin)	4.3 m
Maximum Water Temperature	40°C
Protection Rating	IP5 (IPX5)
Motor Type	Asynchronous, TEFC
Motor Insulation	Class F
Efficiency Rating	> 80% (IE3 Standard)
Motor Shaft	303 Grade Stainless Steel
Mechanical Seal	316 Stainless Steel
Pump Type	Self-Priming Water Pump
Pump Body	Single-piece glass-filled thermoplastic
Strainer Basket Volume	2.05 Litres
Inlet/Outlet Ports	50mm
Unions Included	40/50mm quick-connect barrel unions
Safety Features	Thermal overload protection (auto shutdown)
Total Length	645 mm
Motor Frame	80 mm
Water Compatibility	Fresh water & Salt water (up to 6 g/L / 6000 ppm)
Chemical Compatibility	Chlorine, Ozone, Iodine, Baquacil, Bromine, Salt
Operating Mode	Controlled by filtration timer
Warranty	3 Years (Conditional)
Manufacturer	Waterco

💰 Usage Costs & Running Expenses

Understanding your pump’s operating costs helps with budgeting and choosing the right model. Here’s a detailed breakdown for the HF Alphaflo 150:

📊 Annual Running Cost Calculation

Input Power: 1.614 kW (Waterco Tech Spec)
UK electricity rate: £0.2769 per kWh (Ofgem Price Cap Q1 2026)

🏊 Scenario 1: Seasonal Pool Use (April – September)

Typical UK outdoor pool operating during warmer months.

Parameter	Value
Daily runtime	8 hours
Season length	180 days (6 months)
Annual operating hours	1,440 hours

📈 Calculation:

• Energy consumed: 1.614 kW × 1,440 hours = 2,324.16 kWh/year
• ✅ Annual cost: 2,324.16 × £0.2769 = £643.56

💷 Under £645 per year for powerful seasonal pool circulation!

🔥 Scenario 2: Year-Round Heated/Indoor Pool

Indoor or heated pools requiring continuous circulation throughout the year.

Parameter	Value
Daily runtime	10 hours
Operating days	365 days
Annual operating hours	3,650 hours

📈 Calculation:

• Energy consumed: 1.614 kW × 3,650 hours = 5,891.1 kWh/year
• ✅ Annual cost: 5,891.1 × £0.2769 = £1,631.24

💷 Under £1,635 per year for continuous year-round high-flow operation!

☀️ Scenario 3: Moderate Use / Efficient Schedule

Pools with optimised filtration timing to reduce costs.

Parameter	Value
Daily runtime	6 hours
Season length	180 days (6 months)
Annual operating hours	1,080 hours

📈 Calculation:

• Energy consumed: 1.614 kW × 1,080 hours = 1,743.12 kWh/year
• ✅ Annual cost: 1,743.12 × £0.2769 = £482.67

💷 Under £485 per year with an optimised filtration schedule!

📊 Daily Running Cost Breakdown

For a quick snapshot of what the Alphaflo 150 costs to run each day:

Usage Pattern	Daily Hours	Daily kWh	💰 Daily Cost
☀️ Efficient filtration	4 hours	6.46 kWh	£1.79
🏊 Standard season	8 hours	12.91 kWh	£3.58
🔥 Extended/heated	10 hours	16.14 kWh	£4.47
♨️ Continuous	12 hours	19.37 kWh	£5.36

💵 Under £3.60 per day for typical 8-hour seasonal operation!

🔊 Sound Level Performance

Metric	Detail
🔇 Sound pressure level	~64-66 dBA
🗣️ For reference	Normal conversation = ~60 dBA
📏 Comparison	Quieter than a typical dishwasher (~70 dBA)

Sound data from Waterco Alphaflo Brochure (ZZB2231). Despite its 1.5HP power, the specially designed pump body reduces water turbulence, while the heavy-duty bracket and insulation absorb motor vibration – keeping noise levels remarkably low for this output class.

🔋 IE3 Efficiency Advantage

The HF Alphaflo exceeds IE3 motor efficiency standards (>80%):

Benefit	Detail
⚡ Efficient power conversion	1.614 kW input delivers full 1.5HP (1.12 kW) output
🌱 Reduced carbon footprint	Less wasted energy = lower CO₂ emissions
🔥 Cooler motor operation	Higher efficiency = less heat generated = longer motor life
📉 Reasonable current draw	6.9A suitable for standard domestic electrical circuits

🎯 Real World Examples & Applications

🏊‍♂️ Medium to Large Domestic Pools (50-90m³)

The Alphaflo 150 is the go-to choice for larger UK garden pools and swim spas. With 25.8 m³/h flow at 8m head and maximum flow of 29.8 m³/h, it can turn over a 60m³ pool approximately every 2.5 hours – comfortably achieving 2-3 turnovers daily for crystal-clear water. Even with a 75m³ pool, two turnovers daily are easily achievable within a standard 8-hour filtration window.

🏠 Pools with Heating & Ancillary Systems

When your pool includes a heat exchanger, heat pump, solar heating panels, in-floor cleaning system, or automatic pool cover – you need a pump with serious head pressure. The Alphaflo 150 delivers up to 20.5m maximum head, providing the extra push needed to overcome resistance from complex plumbing systems, long pipe runs, elevated equipment, and multiple ancillary circuits without compromising flow rate.

🌊 Salt Chlorinated & Multi-Chemical Pools

The 316 stainless steel mechanical seal provides comprehensive protection against virtually every pool sanitisation method – chlorinated water, ozone, iodine, Baquacil, bromine and salt water up to 6,000 ppm. The 303 grade stainless steel motor shaft adds another layer of corrosion resistance. Whatever your water treatment approach, the Alphaflo handles it.

🔄 Retrofit & Performance Upgrades

Waterco’s Easy Retrofit design allows the Alphaflo 150 to replace many existing pump models with minimal pipework changes. The 50mm ports with included 40/50mm quick-connect barrel unions simplify connection to standard UPVC plumbing. For pools that have grown in complexity – added heating, water features, or cleaning systems – upgrading to the Alphaflo 150 provides the flow and head needed without a complete replumb.

🏢 Small Commercial & Holiday Let Properties

Busy holiday lets, boutique hotels, and small leisure facilities demand reliable, high-flow pumps that can handle heavy bather loads and demanding filtration schedules. The Alphaflo 150’s automatic thermal overload protection safeguards against damage during extended commercial operation, while the unique motor safeguarding design means even a worn seal doesn’t destroy the motor – reducing maintenance costs and downtime.

💡 Cost Savings Examples

📍 Scenario: Upgrading from an Older 2.0kW Single Speed Pump

Many older installations feature oversized or less efficient pumps consuming more power than necessary:

	❌ Old 2.0kW Pump	✅ Alphaflo 150
Power consumption	2.0 kW	1.614 kW
Seasonal energy (1,440 hrs)	2,880 kWh	2,324.16 kWh
Annual electricity cost	£797.47	£643.56
Annual Saving	—	💰 £153.91

📈 Over 10 years: £153.91 × 10 = £1,539.10 in reduced electricity bills!

⏱️ Payback period: Significant energy savings contribute to pump cost recovery within the first few years!

📍 Scenario: Alphaflo 150 vs Typical Competitor 1.5HP (1.75kW)

Comparing against a less efficient 1.5HP competitor pump:

	❌ Competitor 1.5HP (1.75kW)	✅ Alphaflo 150 (1.614kW)
Power consumption	1.75 kW	1.614 kW
Seasonal energy (1,440 hrs)	2,520 kWh	2,324.16 kWh
Annual cost	£697.95	£643.56
Annual Saving	—	💰 £54.39

📊 Over 10 years: £54.39 × 10 = £543.90 saved – the IE3 efficiency advantage delivers genuine savings even against similar-rated competitors!

📍 Scenario: Year-Round Indoor Pool vs 2.5kW Pump

For heated indoor pools where an oversized pump wastes energy daily:

	❌ 2.5kW Pump (Oversized)	✅ Alphaflo 150 (Right-sized)
Power consumption	2.5 kW	1.614 kW
Annual energy (3,650 hrs)	9,125 kWh	5,891.1 kWh
Annual cost	£2,526.71	£1,631.24
Annual Saving	—	💷 £895.47

⏱️ Payback period: Potential to recover the entire pump cost through energy savings in approximately 12 months!

📍 Scenario: Optimised Run Time vs Standard 8-Hour Schedule

Reducing filtration time from 8 to 6 hours daily (where water quality allows):

	❌ 8 hrs/day (Standard)	✅ 6 hrs/day (Optimised)
Seasonal hours (180 days)	1,440 hours	1,080 hours
Annual energy	2,324.16 kWh	1,743.12 kWh
Annual cost	£643.56	£482.67
Annual Saving	—	💰 £160.89

💡 Tip: For well-maintained pools with good water chemistry, reducing run time by just 2 hours daily saves over £160 per year!

📥 Downloads & Resources

 Waterco Alphaflo Pool Pumps Brochure (PDF) – Complete product overview, features, flow curves, sound levels and dimensional drawings (April 2025)

 Waterco Alphaflo Technical Specification – Full Range (PDF) – Detailed technical specifications for all Alphaflo models including ECO-V variable speed

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🏆 Why Choose This Pump

✅ Unique Motor Safeguarding – Waterco’s exclusive design channels water away from the motor if seals wear – a worn seal becomes a simple fix, not a catastrophic motor failure

✅ 29.8 m³/h Maximum Flow – Handles large pools up to 90m³ with heating, cleaning and water feature systems comfortably

✅ 20.5m Maximum Head – Overcomes resistance from complex plumbing systems, long pipe runs, heat exchangers and ancillary circuits

✅ IE3 Premium Efficiency (>80%) – Just 1.614 kW input for 1.5HP output, keeping seasonal costs under £645 per year

✅ Quiet for Its Power (~64-66 dBA) – Specially designed to reduce turbulence and absorb vibration, operating quieter than a typical dishwasher

✅ Universal Chemical Compatibility – 316 SS seal handles chlorine, ozone, iodine, Baquacil, bromine and salt water

✅ 303 Grade SS Motor Shaft – Premium corrosion-resistant shaft ensures long motor life

✅ 3-Year Conditional Warranty – Comprehensive coverage backed by Waterco’s 40+ years of water technology expertise

✨ Summary

The Waterco HF Alphaflo 150 delivers serious pumping power in an efficient, well-protected package. With 29.8 m³/h maximum flow and 20.5m head, it handles large residential pools up to 90m³ complete with heating circuits, in-floor cleaning, and water features. The unique motor safeguarding design provides protection no competitor can match – channelling seal leaks away from the motor to prevent costly failures. At just 1.614 kW input power with IE3-exceeding efficiency, seasonal running costs stay under £645 per year. The 316 SS mechanical seal handles every sanitisation system, while the 303 SS motor shaft, heavy-duty glass-filled body, and thermal overload protection ensure years of reliable service. Quiet enough for residential use at ~64-66 dBA, powerful enough for commercial demands – the Alphaflo 150 is the pump serious pool owners choose.