🌊 Certikin Hydrostar WHSR043 | 4.0HP (2.9kW) Three-Phase Commercial Pool Pump

💧 Heavy-duty performance engineered for demanding commercial pool and aquatic applications

📋 Product Overview

The Certikin Hydrostar WHSR043 is a professional-grade 4.0HP three-phase commercial pool pump designed to deliver exceptional performance in high-demand aquatic environments. Engineered with state-of-the-art composite plastics and powerful 2.9kW motor technology, this pump excels in large commercial pools, water features, swim jets, and in-floor cleaning systems where reliability and efficiency are non-negotiable.

What sets the Hydrostar apart is its hydraulically optimized design that maximizes flow characteristics while maintaining energy efficiency. The pump features a massive lockable strainer basket ideal for high-debris environments, IP55 rated motor protection for challenging installations, and construction materials proven to withstand chlorine, bromine, ozone, and salt water applications. With flow rates up to 900 litres per minute and the ability to handle heads up to 19 meters, this pump delivers commercial-grade power while maintaining operational economy that protects your bottom line.

Perfect for commercial pool operators, aquatic facility managers, leisure centers, hotels, and contractors managing large-scale water circulation projects who demand durability, performance, and long-term reliability.

⭐ Key Features

✅ Powerful 4.0HP Three-Phase Motor – Delivers 2.9kW of reliable power with 5.2 amp current draw, providing commercial-grade circulation for pools up to 400,000 litres

✅ Heavy-Duty Composite Construction – Glass-filled ABS and polypropylene body with glass-filled Noryl impeller ensures corrosion resistance and extended service life in chemical environments

✅ Massive Lockable Strainer Basket – Extra-large debris basket with quarter-turn lockdown lid assembly handles high-volume leaf and debris loads typical of outdoor commercial installations

✅ IP55 Motor Protection – Jet and dust-proof motor housing protects against harsh environmental conditions, while IPX5 pump rating ensures reliable operation in wet environments

✅ Professional Flow Capacity – Achieves up to 900 LPM (54 m³/hr) at 3.5m head, with maximum working pressure of 19 meters for versatile installation applications

✅ Universal Chemical Compatibility – High-grade carbon-graphite mechanical seal with stainless steel spring works with chlorine, bromine, ozone, Baquacil, iodine, and mild salt water systems

✅ Energy-Efficient 380/415V Operation – Three-phase design reduces running costs compared to single-phase equivalents while providing smoother, more reliable operation

✅ Complete Installation Package – Supplied with 3″ (80mm) socket unions for both inlet and outlet, plus comprehensive technical documentation and 2-year manufacturer warranty

✅ Temperature Resilient Design – Operates reliably with water temperatures up to 50°C, suitable for heated pools, spas, and hot water circulation applications

✅ Fully Factory Tested – Every pump is 100% wet tested before dispatch, ensuring immediate reliable operation upon installation

🔧 Technical Specifications

Specification	Details
Model Code	WHSR043
Power Rating	4.0HP (2.9kW / 3.0kW motor)
Phase	3-Phase
Voltage	380/415V
Frequency	50Hz
Running Current	5.2 Amps (5.8A per manufacturer spec)
Motor Speed	2860 RPM
Motor Protection	IP55 (jet and dust proof)
Pump Protection	IPX5
Maximum Flow	900 LPM (54 m³/hr) at 3.5m head
Maximum Head	19 meters
Maximum Working Pressure	19 meters (1.9 bar)
Inlet/Outlet Connections	3″ (80mm) socket unions
Maximum Water Temperature	50°C (35°C for continuous operation)
Body Material	Glass-filled ABS / PP composite
Impeller Material	Glass-filled Noryl
Diffuser Material	Glass-filled Noryl
Seal Type	Carbon-graphite mechanical seal
Basket Type	Lockable large-capacity strainer
Lid Material	Polycarbonate with quarter-turn lock
Drain Plug	Yes (for complete drainage)
Weight	Approx. 25kg (packaged)
Dimensions (LxWxH)	834mm x 427mm x 529mm
Warranty	2 years from installation
Approvals	EN 60335-2-41, TÜV Rheinland tested

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

Power Consumption Analysis:

• Motor power: 2.9kW (per phase, 3-phase operation)
• Typical commercial pool operation: 12 hours/day
• Operating season: 365 days/year (indoor) or 180 days/year (outdoor)
• Current UK commercial electricity rate: £0.20 per kWh (average 2024-2025)

🏊 Scenario 1: Indoor Commercial Pool (Year-Round Operation)

• Daily usage: 12 hours/day × 365 days = 4,380 hours/year
• Annual consumption: 2.9kW × 4,380 hours = 12,702 kWh
• ✅ Annual electricity cost: £2,540

☀ Scenario 2: Outdoor Commercial Pool (Seasonal Operation)

• Daily usage: 12 hours/day × 180 days = 2,160 hours/year
• Annual consumption: 2.9kW × 2,160 hours = 6,264 kWh
• ✅ Annual electricity cost: £1,253

🏢 Scenario 3: Leisure Centre with Extended Hours

• Daily usage: 16 hours/day × 365 days = 5,840 hours/year
• Annual consumption: 2.9kW × 5,840 hours = 16,936 kWh
• ✅ Annual electricity cost: £3,387

⚡ Three-Phase Efficiency Advantage

Compared to equivalent single-phase pumps:

Single-Phase 4.0HP Equivalent:

• ❌ Power consumption: ~3.5kW (less efficient motor design)
• ❌ Higher current draw causes more line losses
• ❌ Annual cost (12hrs/day, year-round): 3.5kW × 4,380hrs × £0.20 = £3,066

Three-Phase WHSR043:

• ✅ Power consumption: 2.9kW (efficient three-phase design)
• ✅ Lower current per phase reduces electrical losses
• ✅ Annual cost (same usage): 2.9kW × 4,380hrs × £0.20 = £2,540

💰 Annual Savings: £526 (17% reduction in electricity costs)

💵 3-Year Savings: £1,578 💷 5-Year Savings: £2,630

🎯 Real World Examples & Applications

🏊‍♂ Large Commercial Swimming Pools

Perfect for leisure centers, hotels, and public pools ranging from 150,000 to 400,000 litres. The 900 LPM flow capacity ensures complete pool circulation every 6-8 hours, meeting health and safety requirements for water quality. The massive strainer basket handles heavy bather loads and outdoor debris without frequent cleaning interruptions.

🏢 Multi-Pool Leisure Complexes

Ideal for facilities with multiple pools requiring dedicated circulation pumps. The three-phase design provides reliable operation with minimal electrical infrastructure stress. IP55 protection allows installation in plant rooms with high humidity, while the 50°C temperature rating handles heated pool and spa applications in a single pump specification.

🌊 Water Features & Fountain Systems

Excellent for large decorative water features, fountains, and water walls requiring high flow rates at moderate heads. The 19-meter maximum head handles multi-tier fountains, while chemical-resistant construction withstands decorative pool treatments. Quarter-turn basket access simplifies maintenance in public environments.

🏊 Swim Jet & Counter-Current Systems

Powerful enough to drive commercial swim jet systems and endless pools. The 54 m³/hr flow rate provides strong, consistent current for training facilities and rehabilitation centers. Smooth three-phase operation eliminates pulsation that can affect swimmer experience.

🔄 In-Floor Cleaning System Installations

Provides the high flow and pressure required for in-floor pop-up cleaning systems in large commercial pools. The 900 LPM capacity drives multiple cleaning zones simultaneously, while the lockable basket prevents debris from entering the cleaning system distribution lines.

🛁 Commercial Spa & Hot Tub Circulation

Suitable for large commercial spa installations requiring powerful circulation with heating systems. The 50°C temperature rating handles heated spa water, while three-phase reliability ensures uninterrupted operation in high-use commercial environments where downtime equals lost revenue.

💡 Cost Savings Examples

📍 Scenario 1: Upgrading from Older Single-Phase Pump

Old Installation:

• ❌ Single-phase 4HP pump: 3.5kW consumption
• ❌ Higher maintenance costs due to motor stress
• ❌ Annual running cost: £3,066 (12hrs/day, 365 days)
• ❌ Shorter lifespan due to continuous high-current operation

New WHSR043 Installation:

• ✅ Three-phase 4HP: 2.9kW consumption
• ✅ More reliable motor with balanced phase loading
• ✅ Annual running cost: £2,540 (same usage pattern)
• ✅ Extended service life from superior motor design

💰 Annual Saving: £526 ⏱ Payback Period: Approximately 2-3 years (depending on purchase price differential) 📈 5-Year Total Savings: £2,630

📍 Scenario 2: Commercial Pool Operating Cost Optimization

Hotel Pool (200,000 litres, year-round operation):

• Pump runs 10 hours/day × 365 days = 3,650 hours/year
• WHSR043 consumption: 2.9kW × 3,650hrs = 10,585 kWh
• At £0.20/kWh commercial rate: £2,117/year

Compared to competitor 5HP pump:

• ❌ Oversized 5HP pump: 3.75kW consumption
• ❌ Annual cost: 3.75kW × 3,650hrs × £0.20 = £2,738/year
• 💸 Wasted spend: £621/year on unnecessary oversizing

Compared to undersized 3HP pump (requiring longer run times):

• ❌ 3HP pump running 14 hours/day to achieve same turnover
• ❌ 2.24kW × 5,110hrs × £0.20 = £2,289/year
• ❌ Plus increased wear from extended operation

✅ WHSR043 provides optimal performance-to-cost ratio

📍 Scenario 3: Leisure Center ROI Analysis

Facility Profile:

• 3 pools requiring circulation
• Each pump runs 14 hours/day, 365 days/year
• Current mixed pump inventory with varying efficiencies

Fleet Upgrade to WHSR043 (3 pumps):

• Combined annual consumption: 3 × (2.9kW × 5,110hrs) = 44,457 kWh
• Annual electricity cost: 44,457 × £0.20 = £8,891

Previous Mixed Fleet (average efficiency):

• ❌ Average 3.3kW per pump (mix of oversized and aging pumps)
• ❌ Annual consumption: 3 × (3.3kW × 5,110hrs) = 50,589 kWh
• ❌ Annual cost: 50,589 × £0.20 = £10,118

💵 Annual Fleet Savings: £1,227 💰 3-Year Savings: £3,681 💷 5-Year Savings: £6,135

Additional Benefits:

• ✅ Standardized spare parts inventory
• ✅ Simplified maintenance training
• ✅ Consistent performance across all pools
• ✅ Reduced emergency callout costs from improved reliability

📥 Downloads & Resources

Technical Documentation:

📄 Hydrostar Technical Manual – Complete installation, operation, and maintenance guide including performance curves, electrical specifications, and parts breakdown (PDF, 19 pages)

📄 Hydrostar Product Brochure – Commercial pump range overview with specifications, dimensions, and performance data (PDF)

What’s Included:

• Detailed installation instructions with electrical requirements
• Performance curve charts for all flow and head conditions
• Parts breakdown and exploded diagrams
• Warranty terms and conditions
• Chemical compatibility information
• Troubleshooting and maintenance schedules

🏆 Why Choose the Certikin Hydrostar WHSR043?

✅ Proven Commercial Reliability – Waterco/Certikin Hydrostar pumps have decades of proven performance in demanding commercial applications worldwide, backed by comprehensive 2-year warranty and TÜV Rheinland approval

✅ Superior Energy Efficiency – Three-phase motor design delivers up to 17% lower operating costs compared to single-phase equivalents, with savings that compound over the pump’s service life to deliver genuine ROI

✅ Maintenance-Friendly Design – Quarter-turn lockable lid with massive strainer basket minimizes cleaning downtime, while reusable O-rings and standard mechanical seals reduce ongoing parts costs and simplify field service

✅ Universal Chemical Compatibility – High-grade carbon-graphite seals and corrosion-resistant composite construction work with all common pool sanitizers including chlorine, bromine, ozone, and salt water systems without degradation

✅ Professional-Grade Construction – Glass-filled engineering plastics and Noryl components provide superior strength-to-weight ratio, resisting impact damage and environmental stress that would crack inferior pump bodies

✅ Versatile Installation Options – IP55 motor protection allows installation in challenging environments, while 50°C temperature rating and 19m head capacity handle diverse applications from standard pools to heated spas and water features

✅ Complete Factory Testing – Every pump is 100% wet tested before dispatch, ensuring immediate reliable operation and eliminating installation surprises that waste contractor time and client patience

✅ Future-Proof Performance – Deliberately engineered with flow capacity headroom for system expansion, filter upgrades, or additional features without requiring pump replacement

🎁 Why Buy From Parts4Tubs?

✅ Genuine Certikin Products – We supply only authentic manufacturer-direct Certikin equipment with full UK warranty coverage and technical support

✅ Expert Technical Advice – Our team includes qualified pool technicians who can help specify the correct pump for your application and advise on installation requirements

✅ Competitive Trade Pricing – Volume discounts available for contractors, facility managers, and commercial pool operators building or maintaining multiple installations

✅ Fast UK Delivery – Stock held in UK warehouse for rapid dispatch, with express delivery options available for urgent commercial projects and emergency replacements

✅ Comprehensive After-Sales Support – Access to technical documentation, installation guidance, and spare parts supply throughout your pump’s service life

✅ Trade Account Facilities – Credit terms available for approved commercial customers and repeat contractors managing ongoing maintenance contracts

✨ Summary

The Certikin Hydrostar WHSR043 4.0HP three-phase commercial pump represents the optimal balance between robust performance, operational economy, and long-term reliability for demanding aquatic applications. With proven energy savings of up to £526 annually compared to single-phase alternatives, commercial-grade construction that withstands challenging environments, and the versatile flow capacity to handle pools up to 400,000 litres, this pump delivers professional results that protect both water quality and operational budgets. Backed by comprehensive warranty, TÜV approval, and Certikin’s decades of commercial pool expertise, the WHSR043 is the intelligent choice for facility managers, contractors, and pool operators who demand equipment that performs reliably day after day, season after season.

Ready to upgrade your commercial pool circulation? Order the WHSR043 today and experience the difference that professional-grade engineering makes.