🔱 Waterco Hydrostar Plus 15HP (11kW) 3 Phase Commercial Pump

🏆 Maximum Power for High-Demand Aquatic Centres, Competition Pools & Water Parks

📋 Product Overview

The Waterco Hydrostar Plus 15HP stands as the flagship model in the Hydrostar Plus range—delivering uncompromising power for the largest and most demanding commercial aquatic installations. With an 11kW three-phase motor producing exceptional flow rates exceeding 2,800 litres per minute, this pump handles Olympic-sized pools, major water parks, and high-throughput aquatic facilities with ease.

Constructed from UV-stabilised glass-reinforced thermoplastic, the Hydrostar Plus 15HP offers a revolutionary alternative to traditional cast iron and steel pumps. This advanced material provides superior resistance to pool chemicals and corrosion whilst being significantly lighter—making installation more practical without any compromise in durability or performance.

The heavy-duty IP55 weatherproofed motor with 431 stainless steel shaft ensures reliable year-round operation in exposed plant rooms and challenging environmental conditions. Combined with the massive 16-litre strainer basket and clear polycarbonate inspection lid, this pump minimises maintenance demands whilst maximising operational uptime for busy commercial facilities.

⭐ Key Features

✅ Flagship 11kW Three-Phase Motor — Maximum power output in the Hydrostar Plus range, delivering the flow rates required for the largest commercial installations

✅ Heavy-Duty IP55 Weatherproofed Construction — Industrial-grade motor protection with 431 stainless steel shaft handles exposed outdoor locations and harsh operating environments

✅ UV-Stabilised Glass-Reinforced Thermoplastic Body — Advanced composite material eliminates corrosion concerns whilst providing superior chemical resistance to aggressive pool treatment chemicals

✅ Oversized 16 Litre Polypropylene Strainer Basket — Exceptional debris capacity for high-traffic facilities, significantly reducing cleaning frequency and maintenance interruptions

✅ Clear Polycarbonate Strainer Lid — Instant visual inspection without system shutdown—essential for time-critical commercial operations

✅ 6″ ANSI Flanged Suction Port — Industrial-specification 150mm inlet designed for high-volume commercial plumbing systems

✅ 4″ JIS Flanged Discharge Port — 100mm outlet engineered for optimal flow characteristics in large-scale circulation systems

✅ Enclosed Glass-Filled Noryl Impeller — Premium hydraulically-efficient design ensures consistent performance and extended operational life

✅ High-Grade Carbon/Graphite Mechanical Seal — 316 stainless steel construction delivers leak-free operation with extended service intervals

✅ Dual Wintering Drain Plugs — Complete system drainage capability protects against freeze damage during seasonal shutdowns

✅ Ergonomic Quarter-Turn Lock Ring — Easy-grip handles enable rapid tool-free access for routine maintenance operations

🔧 Technical Specifications

Specification	Details
Model	Hydrostar Plus 11kW
Pump Code	2461500
Motor Input Power	11 kW
Nominal Horsepower	15 HP (11.4 kW pump input)
Current Draw	20.3 Amps
Phase	3 Phase
Voltage	380-415V
Motor Speed	2940 RPM
Motor Frame	132
Pump Rating	IPX5
Suction Port	6″ ANSI Flanged (150mm)
Discharge Port	4″ JIS Flanged (100mm)
Total Length	1218 mm
Overall Height	530 mm
Overall Width	615 mm
Weight	92 kg
Operating Temperature Range	4°C to 40°C
Pump Body Material	Glass-Reinforced Polypropylene
Impeller Material	Glass-Filled Noryl
Strainer Basket	Polypropylene (16 litres)
Strainer Lid	Clear Polycarbonate
Mechanical Seal	Carbon/Graphite with 316 SS
Motor Protection	IP55 Weatherproofed
Shaft Material	431 Stainless Steel
Sound Level	76-80 dBA (flow dependent)

💰 Usage Costs & Running Expenses

Commercial facility managers require accurate operational cost projections for budgeting and ROI calculations. Here’s a comprehensive breakdown for the Hydrostar Plus 11kW.

📊 Annual Running Cost Calculation

Base Parameters:

• Motor Input Power: 11 kW
• UK Commercial Electricity Rate: £0.27 per kWh (November 2025 average)

🏛️ Scenario 1: Olympic/Competition Pool — Intensive Operation

Usage Profile:

• Operating Hours: 14 hours per day
• Operating Days: 365 days per year
• Total Annual Hours: 5,110 hours

💵 Annual Running Cost:

11 kW × 5,110 hours × £0.27 = £15,176.70 per year

Monthly Average: £1,264.73

🎢 Scenario 2: Major Water Park — Seasonal Operation

Usage Profile:

• Operating Hours: 16 hours per day
• Operating Days: 200 days (extended season April–October)
• Total Annual Hours: 3,200 hours

💵 Annual Running Cost:

11 kW × 3,200 hours × £0.27 = £9,504.00 per year

Monthly Average (during operation): £1,357.71

🏊 Scenario 3: Large Municipal Leisure Complex — Standard Hours

Usage Profile:

• Operating Hours: 12 hours per day
• Operating Days: 350 days per year
• Total Annual Hours: 4,200 hours

💵 Annual Running Cost:

11 kW × 4,200 hours × £0.27 = £12,474.00 per year

Monthly Average: £1,039.50

🏨 Scenario 4: Resort Hotel Complex — Extended Operation

Usage Profile:

• Operating Hours: 18 hours per day
• Operating Days: 365 days per year
• Total Annual Hours: 6,570 hours

💵 Annual Running Cost:

11 kW × 6,570 hours × £0.27 = £19,513.10 per year

Monthly Average: £1,626.09

⚡ Three-Phase Motor Efficiency Benefits

The 11kW three-phase configuration delivers substantial advantages over single-phase alternatives:

✅ 10-15% improved energy efficiency compared to equivalent single-phase motors ✅ Balanced power distribution across three phases reducing electrical stress ✅ Lower operating temperatures extending motor winding lifespan ✅ Smoother torque delivery minimising mechanical wear on bearings and seals ✅ Reduced harmonic distortion benefiting other electrical equipment on-site

🎯 Real World Applications

🏅 Olympic & International Competition Pools

The Hydrostar Plus 15HP delivers the circulation capacity essential for FINA-standard 50-metre competition pools. With flow rates exceeding 2,800 lpm at moderate head pressures, it ensures the rapid water turnover rates mandated for international competitive swimming events whilst maintaining the pristine water clarity expected at elite facilities.

🎢 Large-Scale Water Parks

Engineered for the punishing demands of water park operations—continuous summer operation, high bather loads, and aggressive chemical environments. The thermoplastic construction resists the corrosive effects of elevated chlorine levels whilst the 16-litre strainer basket handles the increased debris load from outdoor attractions with extended service intervals.

🏛️ University & College Aquatic Centres

Academic institutions require pumps that balance performance with operational economy. The Hydrostar Plus 15HP provides the flow capacity for competitive training programmes whilst its energy-efficient three-phase motor helps manage utility budgets across extended academic years.

🏥 Large Hydrotherapy & Rehabilitation Facilities

Major healthcare facilities demand absolute reliability—the Hydrostar Plus’s proven commercial track record provides the dependability essential for therapeutic pool operations. The quiet operation (76-80 dBA) minimises disturbance in clinical environments where patient comfort is paramount.

🔄 Commercial Retrofit & Upgrade Projects

At 92kg, the Hydrostar Plus 15HP is significantly lighter than equivalent cast iron pumps (typically 120-140kg), simplifying replacement installations in existing plant rooms with restricted access. Standard 6″ ANSI/4″ JIS flange connections ensure compatibility with most commercial plumbing configurations.

🌊 Wave Pools & Specialty Attractions

The high-flow capability handles the demanding circulation requirements of wave generation systems and specialty water attractions where consistent, powerful water movement is essential to the guest experience.

💡 Cost Savings Examples

📍 Scenario: Replacing Dual Smaller Pumps with Single Hydrostar Plus

Many facilities run two smaller pumps when a single larger unit would be more efficient:

❌ Current Setup: 2 × 7.5HP (5.5kW) Pumps Running Simultaneously

(5.5 kW × 2) × 4,200 hours × £0.27 = £12,474.00 per year
Plus: Double maintenance costs, double seal replacements, double failure points

✅ Single Hydrostar Plus 15HP (11kW)

11 kW × 4,200 hours × £0.27 = £12,474.00 per year
Maintenance: Single pump service schedule

💰 Annual Maintenance Saving: £800-£1,200 🛠️ Additional Benefits:

• Single point of maintenance
• Reduced spare parts inventory
• Simplified system management
• One warranty to track

📍 Scenario: Upgrading from Ageing 20HP Cast Iron Pump

Older oversized pumps often operate at poor efficiency whilst consuming excessive energy:

❌ Old System: 20HP (15kW) Cast Iron Pump at 70% Efficiency

Actual consumption: ~18 kW (due to inefficiency and oversizing)
18 kW × 4,200 hours × £0.27 = £20,412.00 per year

✅ New Hydrostar Plus 15HP — Right-Sized for Application

11 kW × 4,200 hours × £0.27 = £12,474.00 per year

💷 Annual Saving: £7,938.00 ⏱ Payback Period: 5.5 months (based on £3,606.72 purchase price) 📈 5-Year Saving: £39,690.00

📍 Scenario: Corrosion-Related Replacement Cycle Elimination

Steel pumps in chlorinated commercial environments require frequent replacement:

❌ Cast Iron Pump 10-Year Lifecycle:

• Initial purchase: £4,200
• Replacement at year 4: £4,500
• Replacement at year 8: £4,800
• Corrosion repairs (multiple): £2,400
• Emergency call-outs: £1,500
• Total 10-Year Cost: £17,400

✅ Hydrostar Plus Thermoplastic 10-Year Lifecycle:

• Initial purchase: £3,606.72
• Routine seal services (×3): £540
• Scheduled maintenance: £600
• Total 10-Year Cost: £4,746.72

💵 10-Year Saving: £12,653.28

📍 Scenario: Variable Speed Drive Compatibility

Pairing the Hydrostar Plus with a VSD controller unlocks additional savings:

Standard Fixed-Speed Operation:

11 kW × 4,200 hours × £0.27 = £12,474.00 per year

With VSD Running at Average 70% Speed (Power = Speed³):

Effective power: 11 kW × 0.343 = 3.77 kW average
3.77 kW × 4,200 hours × £0.27 = £4,275.29 per year

💰 Annual VSD Saving: £8,198.71 📊 Energy Reduction: 66%

Note: Actual savings depend on system design and operational requirements

📥 Downloads & Resources

📄 Commercial Pump Owners Manual — Comprehensive installation, operation, maintenance, and troubleshooting guide for the complete Hydrostar Plus range

📄 Hydrostar Plus Technical Brochure — Detailed specifications, performance curves, dimensional drawings, sound level data, and warranty information

🛍️ Why Buy From Parts4Tubs?

✅ Commercial Pool Specialists — Dedicated expertise in high-performance commercial aquatic equipment and systems

✅ Competitive Trade Pricing — Direct manufacturer relationships delivering genuine value for commercial operators

✅ Technical Advisory Service — Knowledgeable team available to assist with pump selection, sizing calculations, and installation queries

✅ Nationwide Delivery — Fast dispatch across the UK to minimise facility downtime

✅ Genuine Waterco Products — Authentic manufacturer-supplied equipment with full factory warranty backing

✅ Stock Notification Service — Register for alerts when this popular model returns to stock

🏆 Why Choose the Hydrostar Plus 15HP?

✅ Maximum Performance — The most powerful pump in the Hydrostar Plus range, delivering the flow rates required for the largest commercial installations

✅ Proven Reliability — Waterco’s 40+ years of commercial pump engineering expertise, with installations operating successfully across six continents

✅ Corrosion-Proof Construction — Thermoplastic body eliminates the rust and chemical degradation that plagues steel alternatives in pool environments

✅ Reduced Lifecycle Costs — Longer service life, fewer replacements, and lower maintenance requirements deliver substantial long-term savings

✅ Installation Efficiency — At 92kg, significantly lighter than equivalent cast iron pumps, reducing crane hire and installation labour costs

✅ Comprehensive Warranty — 2-year coverage on wet ends and components, 1-year coverage on motor and mechanical seal for commercial applications

✨ Summary

The Waterco Hydrostar Plus 15HP represents the ultimate in commercial pool pump capability—maximum power combined with advanced thermoplastic construction that eliminates the corrosion concerns plaguing traditional steel pumps. For operators of Olympic pools, major water parks, large leisure complexes, and high-throughput aquatic facilities, this flagship pump delivers the exceptional flow rates, proven reliability, and long-term value that demanding commercial operations require.

With its 11kW three-phase motor, corrosion-proof construction, oversized strainer basket, and comprehensive manufacturer warranty, the Hydrostar Plus 15HP is engineered to deliver years of dependable service in the most challenging aquatic environments—whilst delivering meaningful savings in maintenance costs and operational efficiency.