🌀 Waterco HF Alphaflo 100 – 1.0HP Single Phase Pool Pump

⚙️ The Perfect Mid-Range Powerhouse – IE3 Efficiency, Unique Motor Safeguarding & Quiet Operation with 3-Year Warranty

📋 Product Overview

The Waterco HF Alphaflo 100 is the versatile mid-range workhorse of the Alphaflo family, delivering an ideal combination of power and efficiency for the majority of UK residential pools. With 15 m³/h flow at 10m head and a maximum flow rate of 22.8 m³/h, this 1.0HP single-phase pump handles pools with heating, filtration, and cleaning systems comfortably – all while consuming just 1.060 kW input power, exceeding IE3 efficiency standards (>80%).

The Alphaflo’s standout innovation is Waterco’s unique motor safeguarding design. In conventional pumps, a worn mechanical seal allows water to travel up the drive shaft and ruin the motor in a very short period. The Alphaflo’s exceptional design protects the pump motor’s end shield from any water contact by channelling any leaks through worn-out mechanical seals to drain out of the pump. A worn seal becomes a routine maintenance item – not an expensive motor replacement.

Equipped with a newly designed impeller and diffuser that improves water flow and reduces head loss, the pump body has been specially designed to enhance water flow and minimise operating noise by reducing water turbulence. A heavy-duty pump bracket and insulation absorbs motor vibration for remarkably quiet operation at just ~58-60 dBA. The strong single-piece glass-filled thermoplastic body houses a high-grade 316 stainless steel mechanical seal for protection against chlorinated water, ozone, iodine, Baquacil, bromine and salt water. The 303 grade stainless steel motor shaft provides additional corrosion resistance. Backed by Waterco’s 3-year conditional warranty.

⭐ Key Features

✅ Unique Motor Safeguarding Design – Waterco’s exclusive innovation protects the motor’s end shield from water contact by channelling any leaks from worn seals to drain safely away, preventing costly motor destruction

✅ IE3 High Efficiency Motor (>80%) – Exceeds IE3 efficiency standard with only 1.060 kW input for full 1.0HP output, delivering genuine energy savings season after season

✅ Ideal Mid-Range Power – 22.8 m³/h maximum flow and 17.0m maximum head provides the sweet spot for most UK residential pools with heating and filtration systems

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

✅ Whisper-Quiet Operation (~58-60 dBA) – Pump body specially designed to reduce water turbulence, heavy-duty bracket and insulation absorbs motor vibration – quieter than normal conversation

✅ 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 hassle-free installation on inlet and outlet

✅ Drain Plugs – Convenient drainage for winterisation and seasonal maintenance

🔧 Technical Specifications

Specification	Detail
Model	HF Alphaflo 100
Product Code	248100EUM
Output Power (P2)	1.0 HP
Input Power	1.060 kW
Motor Input Power (Rated)	1.030 kW
Amperage	4.7 A
Motor Current (Rated)	4.5 A
Power Supply	Single Phase 220-240V
Frequency	50 Hz
Nominal Speed	2810 RPM
Flow Rate @ 8m Head	295 lpm (17.7 m³/h)
Flow Rate @ 10m Head	258 lpm (15.5 m³/h)
Maximum Flow Rate (Qmax)	22.8 m³/h
Maximum Head (Hmax)	17.0 m
Minimum Head (Hmin)	2.8 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	626 mm
Motor Frame	71 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 100:

📊 Annual Running Cost Calculation

Input Power: 1.060 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: 1.060 kW × 1,440 hours = 1,526.4 kWh/year
• ✅ Annual cost: 1,526.4 × £0.2769 = £422.66

💷 Under £425 per year for complete 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: 1.060 kW × 3,650 hours = 3,869 kWh/year
• ✅ Annual cost: 3,869 × £0.2769 = £1,071.33

💷 Under £1,075 per year for continuous year-round 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: 1.060 kW × 1,080 hours = 1,144.8 kWh/year
• ✅ Annual cost: 1,144.8 × £0.2769 = £317.01

💷 Under £320 per year with an optimised filtration schedule!

📊 Daily Running Cost Breakdown

Usage Pattern	Daily Hours	Daily kWh	💰 Daily Cost
☀️ Efficient filtration	4 hours	4.24 kWh	£1.17
🏊 Standard season	8 hours	8.48 kWh	£2.35
🔥 Extended/heated	10 hours	10.60 kWh	£2.94
♨️ Continuous	12 hours	12.72 kWh	£3.52

💵 Under £2.35 per day for typical 8-hour seasonal operation!

🔊 Sound Level Performance

Metric	Detail
🔇 Sound pressure level	~58-60 dBA
🗣️ For reference	Normal conversation = ~60 dBA
🌙 Residential suitability	Operates at or below conversational level

Sound data from Waterco Alphaflo Brochure (ZZB2231). The 1HP model sits in the same quiet band as the 0.75HP, making it exceptionally quiet for its power output. The pump body reduces water turbulence while the heavy-duty bracket and insulation absorb motor vibration.

🔋 IE3 Efficiency Advantage

Benefit	Detail
⚡ Efficient power conversion	1.060 kW input delivers full 1.0HP output
🌱 Reduced carbon footprint	Less wasted energy = lower CO₂ emissions
🔥 Cooler motor operation	Higher efficiency = less heat = longer motor life
📉 Moderate current draw	4.7A comfortably within standard domestic electrical capacity

🎯 Real World Examples & Applications

🏊‍♂️ Medium Domestic Pools (30-65m³)

The Alphaflo 100 is the ideal choice for the majority of UK garden pools. With 17.7 m³/h flow at 8m head and maximum flow of 22.8 m³/h, it can turn over a 45m³ pool approximately every 2.5 hours – comfortably achieving 2-3 turnovers daily for crystal-clear water within a standard 8-hour filtration window. The compact 626mm total length fits standard plant rooms without difficulty.

🏠 Pools with Heat Pumps & Solar Heating

Modern pool installations often include heat pumps, solar panels, or gas heaters that add resistance to the circulation system. The Alphaflo 100 delivers up to 17.0m maximum head – providing sufficient pressure to overcome resistance from heating circuits, longer pipe runs, and elevated equipment while maintaining strong flow rates. This makes it the natural partner for energy-efficient heated pool systems.

🌊 Salt Chlorinated & All Sanitisation Systems

The 316 stainless steel mechanical seal provides comprehensive protection against every common 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 further corrosion resistance. Whatever treatment system your pool uses, the Alphaflo handles it without concern.

🔄 Retrofit & Performance Upgrades

Waterco’s Easy Retrofit design allows the Alphaflo 100 to replace many existing pump models with minimal pipework changes. The 50mm ports with included 40/50mm quick-connect barrel unions match standard UPVC plumbing. For pools where a 0.75HP pump struggles or where heating/cleaning systems have been added, the 1HP Alphaflo provides the flow and head needed without jumping to an unnecessarily large model.

🏢 Holiday Lets & Small Commercial Use

Busy holiday rental pools and small leisure facilities demand reliable pumps that handle heavy bather loads and extended filtration schedules. The Alphaflo 100’s thermal overload protection safeguards against damage during long operating hours, while the unique motor safeguarding design prevents costly motor failures from worn seals – reducing maintenance costs and unexpected downtime.

💡 Cost Savings Examples

📍 Scenario: Upgrading from an Older 1.5kW Single Speed Pump

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

	❌ Old 1.5kW Pump	✅ Alphaflo 100
Power consumption	1.5 kW	1.060 kW
Seasonal energy (1,440 hrs)	2,160 kWh	1,526.4 kWh
Annual electricity cost	£598.10	£422.66
Annual Saving	—	💰 £175.44

📈 Over 10 years: £175.44 × 10 = £1,754.40 in reduced electricity bills!

⏱️ Payback period: Energy savings alone contribute significantly to recovering the pump cost within the first few years!

📍 Scenario: Alphaflo 100 vs Typical Competitor 1HP (1.20kW)

Comparing against a less efficient 1HP competitor pump:

	❌ Competitor 1HP (1.20kW)	✅ Alphaflo 100 (1.060kW)
Power consumption	1.20 kW	1.060 kW
Seasonal energy (1,440 hrs)	1,728 kWh	1,526.4 kWh
Annual cost	£478.57	£422.66
Annual Saving	—	💰 £55.91

📊 Over 10 years: £55.91 × 10 = £559.10 saved – the IE3 efficiency advantage delivers real value even against similar-rated competitors!

📍 Scenario: Year-Round Indoor Pool vs 1.6kW Pump

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

	❌ 1.6kW Pump (Oversized)	✅ Alphaflo 100 (Right-sized)
Power consumption	1.6 kW	1.060 kW
Annual energy (3,650 hrs)	5,840 kWh	3,869 kWh
Annual cost	£1,617.10	£1,071.33
Annual Saving	—	💷 £545.77

⏱️ Payback period: Potential to recover the entire pump cost through energy savings in under 18 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	1,526.4 kWh	1,144.8 kWh
Annual cost	£422.66	£317.01
Annual Saving	—	💰 £105.65

💡 Tip: For well-maintained pools with good water chemistry, reducing run time by just 2 hours daily saves over £105 per year – that’s nearly £1,060 over a decade!

📥 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 protects the motor from water damage if seals wear – a worn seal drains safely away instead of destroying the motor

✅ The Sweet Spot: 1HP Power – 22.8 m³/h max flow and 17.0m max head handles the majority of UK residential pools without oversizing

✅ IE3 Premium Efficiency (>80%) – Only 1.060 kW input for 1.0HP output, keeping seasonal running costs under £425 per year

✅ Remarkably Quiet (~58-60 dBA) – Same quiet band as the smaller 0.75HP model, operating at or below normal conversational level

✅ 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 in wet environments

✅ Compact 626mm Length – Same footprint as the 0.5HP and 0.75HP models, fitting standard plant rooms without modification

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

✨ Summary

The Waterco HF Alphaflo 100 is the natural choice for most UK residential pools – delivering the ideal balance of power, efficiency, and protection. With 22.8 m³/h maximum flow and 17.0m head, it handles pools up to 65m³ complete with heating circuits and ancillary systems. Waterco’s unique motor safeguarding design provides protection no competitor can match, channelling any seal leaks away from the motor to prevent costly failures. At just 1.060 kW with IE3-exceeding efficiency, seasonal running costs stay under £425 per year – or just £2.35 per day. Remarkably, the 1HP model operates at the same ~58-60 dBA as the smaller 0.75HP, delivering more power without more noise. The 316 SS mechanical seal handles every sanitisation system, the 303 SS motor shaft ensures durability, and the compact 626mm length fits existing plant rooms. The mid-range powerhouse that does everything right.