💧 Certikin Hydrostar WHSR0553 | 5.5HP (3.16kW) Three-Phase Commercial Plastic Pump

Unbeatable Power and Efficiency for Large-Scale Commercial Aquatic Installations

📋 Product Overview

The Certikin Hydrostar WHSR0553 represents a significant leap in commercial pool pump engineering, delivering powerful 5.5HP (3.16kW) performance in a lightweight, corrosion-resistant composite plastic design. Manufactured by Waterco Limited and distributed through Certikin’s trusted network, this three-phase pump is specifically engineered for large commercial pools, water parks, leisure centers, and high-performance aquatic facilities where reliability and efficiency are non-negotiable.

What sets the WHSR0553 apart is its exceptional power-to-efficiency ratio. With an impressively low current draw of just 5.8 amps despite its substantial 5.5HP output, this pump delivers the high-volume water circulation demanded by commercial operations without the excessive energy consumption typical of older pump technologies. The composite plastic construction provides superior chemical resistance compared to traditional metal pumps, while the IP55 motor protection rating ensures reliable operation even in the wettest commercial environments.

Designed for facilities that operate demanding filtration schedules year-round, the WHSR0553 combines European motor technology from E.M.G. Italy with Waterco’s hydraulically optimized pump design, delivering maximum flow characteristics that keep large commercial pools crystal clear. Whether you’re managing a municipal swimming complex, hotel resort pool, water park attraction, or large residential development, this pump provides the commercial-grade performance and longevity that facility managers depend upon.

⭐ Key Features

✅ Powerful 5.5HP (3.16kW) Three-Phase Motor: Delivers exceptional flow rates up to 66 m³/hr, ideal for large commercial pools requiring rapid water turnover and effective filtration across expansive water volumes

✅ Ultra-Low 5.8 Amp Current Draw: Achieves remarkable energy efficiency for a pump of this power class, significantly reducing operational costs compared to older single-phase or less efficient three-phase alternatives

✅ Advanced Composite Plastic Construction: Engineered from high-quality GF/ABS and GF/PP materials that provide superior chemical resistance to chlorine, bromine, ozone, Baquacil, iodine, and mild saltwater applications while dramatically reducing weight compared to bronze or cast iron pumps

✅ IP55 Motor Protection Rating: Provides comprehensive jet and dust protection, ensuring reliable operation in demanding commercial pool environments with high humidity, splash zones, and outdoor installations

✅ Versatile Connection Options: Includes both 3″ (80mm) and 90mm socket unions for flexible installation compatibility with existing commercial plumbing infrastructure, reducing retrofit complexity and costs

✅ Maximum 50°C Water Temperature Rating: Suitable for heated pools, spa circuits, and warm water applications common in commercial leisure facilities and therapeutic aquatic environments

✅ Massive Lockable Strainer Basket: Features oversized debris capacity with quarter-turn lock-down clear lid assembly, minimizing maintenance frequency even in high-debris environments like outdoor pools or facilities near landscaping

✅ Complete Drainage System: Built-in drain plug ensures complete pump drainage for winterization, maintenance procedures, or seasonal facility closures, protecting internal components and extending service life

✅ European Motor Engineering: Utilizes totally enclosed fan-cooled (TEFC) motors from E.M.G. Italy, known for reliability and longevity in commercial applications, with thermal overload protection integrated into the motor design

✅ Hydraulically Optimized Design: Waterco’s state-of-the-art engineering delivers maximum flow characteristics with minimal turbulence, ensuring efficient operation across a wide range of head pressures and flow requirements

🔧 Technical Specifications

Specification	Detail
Model Number	WHSR0553
Power Rating	5.5 HP (3.16 kW per phase)
Motor Type	Three-Phase, Totally Enclosed Fan Cooled (TEFC)
Voltage	380/415V
Frequency	50Hz
Current Draw	5.8 Amps (per phase)
Motor Speed	2860 RPM
Motor Protection	IP55 (Jet and Dust Proof)
Pump Protection Rating	IPX5
Maximum Flow Rate	66 m³/hr (1,100 LPM)
Maximum Head Pressure	23 meters
Maximum Water Temperature	50°C
Inlet/Outlet Connections	3″ (80mm) threaded / 90mm socket unions included
Pump Body Material	Composite Plastic (GF/ABS, GF/PP)
Impeller Material	Glass-Filled Noryl
Diffuser Material	Glass-Filled Noryl
Mechanical Seal	High-Grade Carbon-Graphite with Stainless Steel Spring
Strainer Lid Material	Clear Polycarbonate with Quarter-Turn Lock
Dimensions (L × W × H)	834mm × 427mm × 529mm
Packaged Weight	Approx. 30kg
Chemical Compatibility	Chlorine, Bromine, Ozone, Baquacil, Iodine, Mild Saltwater
Warranty	2 Years Comprehensive (from installation date)
Compliance Standards	AS3136, AS3350, EN 60335-2-41 (TUV Tested)

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

Understanding the true operating costs of commercial pool equipment is essential for facility budgeting and capital equipment decisions. The WHSR0553’s efficient three-phase motor design delivers substantial savings over both older pump technologies and less efficient alternatives.

Power Consumption per Phase: 3.16 kW Total Three-Phase Power: 3.16 kW × 3 phases = 9.48 kW actual draw

Standard Commercial Operation Scenario:

• Usage: 8 hours/day, 6 days/week (Municipal Pool Schedule)
• Annual operating hours: 8 × 6 × 52 = 2,496 hours/year
• UK Commercial electricity rate: £0.27 per kWh (November 2025 average)

✅ Annual Operating Cost:

• 9.48 kW × 2,496 hours × £0.27/kWh = £6,384 per year

Extended Season Scenario (Heated Pool, Year-Round):

• Usage: 10 hours/day, 7 days/week
• Annual operating hours: 10 × 7 × 52 = 3,640 hours/year

✅ Annual Operating Cost:

• 9.48 kW × 3,640 hours × £0.27/kWh = £9,321 per year

💡 Cost Savings Examples

📍 Scenario 1: Upgrading from Older Single-Phase 5HP Pump

Many commercial facilities still operate aging single-phase pumps that are significantly less efficient than modern three-phase technology. Single-phase motors typically draw 15-25% more power for equivalent output due to inherent design limitations.

❌ Old Single-Phase 5HP Pump:

• Estimated power draw: 4.2 kW (single-phase inefficiency)
• Annual cost (2,496 hours): 4.2 × 2,496 × £0.27 = £2,830/year

✅ WHSR0553 5.5HP Three-Phase:

• Power per phase: 3.16 kW
• Annual cost (2,496 hours): £2,130/year (per phase circuit)

Note: While the total facility cost depends on three-phase infrastructure, facilities with three-phase power already available benefit from the pump’s superior efficiency and dramatically reduced amperage per phase (5.8A vs 19-22A single-phase), reducing electrical infrastructure stress and allowing higher-capacity pumps on existing circuits.

Additional Single-Phase Comparison Benefits:

• Lower heat generation extending motor life
• Reduced electrical panel load allowing additional equipment
• Smoother operation with less vibration and noise
• Superior starting torque and reliability

📍 Scenario 2: Replacing Competitor 6HP Pump with Higher Current Draw

Competitor three-phase pumps in similar power ranges often draw 7.5-9 amps or more, reflecting less efficient motor design and older engineering.

❌ Competitor 6HP Pump (typical 8.5 amp draw):

• Power: 3.5 kW per phase
• Annual cost (3,640 hours): 3.5 × 3,640 × £0.27 = £3,429/year per phase

✅ WHSR0553 5.5HP (5.8 amp draw):

• Power: 3.16 kW per phase
• Annual cost (3,640 hours): 3.16 × 3,640 × £0.27 = £3,108/year per phase

💰 Annual Saving: £321 per phase × 3 phases = £963 per year

⏱️ Five-Year Savings: £963 × 5 = £4,815

Even accounting for the slightly lower horsepower rating, the WHSR0553 delivers comparable or superior flow performance due to Waterco’s hydraulically optimized design, while consuming significantly less energy. This makes it the intelligent choice for cost-conscious facility managers seeking to reduce operational expenses without compromising performance.

📍 Scenario 3: Energy Cost Escalation Protection

UK commercial electricity prices have increased 75% since early 2021, with current rates around £0.27/kWh representing a “new normal” elevated baseline. Energy market analysts expect commercial rates to remain elevated or increase further through 2026-2027 due to ongoing infrastructure constraints and renewable transition costs.

Current Annual Cost at £0.27/kWh (2,496 hours): £6,384

Projected Annual Cost at £0.32/kWh (conservative 2026 estimate):

• 9.48 kW × 2,496 hours × £0.32/kWh = £7,570

If Using Less Efficient 11 kW Competitor Pump:

• Current cost: 11 × 2,496 × £0.27 = £7,399
• 2026 projected: 11 × 2,496 × £0.32 = £8,775

💷 Annual Protection: Investing in the efficient WHSR0553 provides £1,205 in protected savings against projected 2026 rates compared to less efficient alternatives, with this advantage expanding if energy prices continue rising.

📈 Cumulative 5-Year Protection (assuming gradual rate increases to £0.32):

• Estimated savings vs. 11kW pump: £5,500 – £6,800

📍 Scenario 4: Reducing Peak Demand Charges

Commercial facilities with maximum demand exceeding 100kW face additional capacity charges based on peak consumption periods. The WHSR0553’s low amperage draw helps minimize these demand spikes.

Peak Demand Impact:

• ❌ High-draw 9A pump (per phase): Contributes to peak demand surcharges
• ✅ WHSR0553 5.8A draw: Reduces facility peak demand by 35% vs. higher-current alternatives

For large facilities running multiple pumps simultaneously, this amperage reduction across all equipment can lower monthly capacity charges by £150-400, adding £1,800-£4,800 annually in hidden savings beyond direct energy costs.

🎯 Real World Examples & Applications

🏊‍♂️ Municipal Swimming Pools

Application Context: Community pools typically feature main pools of 300-800m³ requiring complete turnover every 4-6 hours during peak seasons, plus separate teaching pools, splash pads, or leisure water features.

WHSR0553 Performance: At optimal head pressure (10-12m typical for commercial filtration systems), the pump delivers 48-55 m³/hr, providing:

• Complete turnover of a 400m³ pool in 7.3-8.3 hours
• Sufficient capacity for multi-pool facilities with strategic valve sequencing
• Reliable operation through daily 8-10 hour filtration cycles during swimming season

Maintenance Benefits: The massive lockable strainer basket handles high debris loads from heavy public use, while composite construction eliminates corrosion issues common in chlorinated municipal facilities. The clear polycarbonate lid allows visual debris inspection without disassembly.

🏢 Hotel & Resort Pool Systems

Application Context: Resort pools require aesthetic excellence and reliability, often running extended hours (12-16 hours daily) to maintain visual clarity for guests. Downtime is unacceptable during peak season.

WHSR0553 Advantages:

• Quiet Operation: Composite construction and quality motor engineering minimize noise intrusion into guest areas
• 50°C Temperature Rating: Handles heated pool circuits and spa overflow systems common in resort installations
• IP55 Protection: Reliable operation in outdoor pool equipment rooms with high humidity and occasional weather exposure
• Low Vibration: TEFC motor design and hydraulic optimization reduce vibration that could disturb nearby accommodations

ROI for Resorts: Energy efficiency becomes critical with extended operating hours. A resort running the pump 14 hours daily (5,110 hours/year) would spend £13,038 annually at £0.27/kWh, making the savings from efficient pump selection even more significant—potentially £2,000-3,000 annually vs. less efficient alternatives.

🌊 Water Parks & Leisure Attractions

Application Context: Water park environments demand maximum reliability under continuous operation, high debris loads from outdoor settings, and resistance to aggressive chemical treatment programs.

WHSR0553 Capabilities:

• Continuous Duty Rating: Designed for commercial applications with minimal downtime
• Chemical Resistance: Composite materials withstand aggressive chlorination and oxidation programs necessary for high-bather loads
• High Flow Capacity: 66 m³/hr maximum flow supports wave pools, lazy rivers, and large circulation systems when multiple pumps are configured in parallel
• Serviceability: Large strainer basket and clear lid allow rapid maintenance during operating hours without extended attraction closure

Operational Advantage: Water parks operating 12+ hours daily during season benefit enormously from three-phase efficiency and low amperage draw, as multiple pumps typically operate simultaneously across different attractions.

🏊 Private Member Clubs & Sports Facilities

Application Context: Private clubs and sports complexes often feature pools of 200-500m³ requiring commercial-grade reliability but face strict budget constraints for both capital equipment and ongoing operational costs.

WHSR0553 Value Proposition:

• Commercial Quality at Reasonable Cost: Delivers municipal-grade reliability without luxury pricing
• Reduced Electrical Infrastructure Requirements: 5.8A per phase draw fits within existing three-phase electrical capacity, often eliminating need for expensive panel upgrades
• Lower Insurance Costs: IP55 protection and comprehensive safety features may qualify for lower facility insurance premiums
• Member Experience: Quiet operation and reliable performance maintain pool water quality that meets member expectations

Budget Impact: For clubs operating on fixed membership revenue, the WHSR0553’s efficiency helps control rising utility costs that otherwise squeeze operational budgets.

🔄 Retrofit & Upgrade Projects

Application Context: Facilities replacing aging equipment face challenges with existing plumbing configurations, electrical capacity limits, and budget constraints while needing to maintain operational continuity.

WHSR0553 Retrofit Advantages:

• Flexible Connection Options: Both 3″ and 90mm unions provided, accommodating various existing plumbing configurations without extensive modification
• Reduced Electrical Load: Lower amperage vs. older pumps may eliminate need for electrical service upgrades
• Lightweight Installation: Composite construction (approximately 30kg) simplifies handling and installation, reducing labor costs vs. heavy bronze or cast iron pumps
• Direct Replacement Capability: Dimensional envelope similar to predecessor models in many cases, minimizing structural modifications

Project Timeline: The pump’s versatility and ease of installation can significantly reduce facility downtime during replacement projects—critical for commercial operations where each day of closure represents lost revenue.

☀️ Seasonal & Year-Round Operations

Seasonal Facilities (Outdoor UK Pools, 5-6 Month Season):

• Built-in Drainage: Drain plug enables complete winterization, protecting pump during off-season storage
• Rapid Seasonal Startup: Reliable motor starting and proven mechanical seals ensure smooth spring commissioning
• Cost Control: Efficient operation during limited operating season maximizes profitability for seasonal businesses

Year-Round Facilities (Indoor Pools, Heated Outdoor):

• Extended Service Life: Quality materials and construction support continuous operation with minimal degradation
• Temperature Tolerance: 50°C rating handles heated pool circuits throughout winter heating season
• Proven Reliability: European motor engineering (E.M.G. Italy) provides confidence in year-round commercial duty

📥 Downloads & Resources

Access comprehensive technical documentation to support your purchasing decision, installation planning, and ongoing maintenance:

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

📄 Hydrostar Product Brochure – Commercial specifications, dimensions, and performance data for entire Hydrostar range (PDF)

📄 Product Datasheet – Quick reference technical specifications and ordering information (available upon request)

📄 Performance Curves – Detailed flow vs. head performance graphs for precise system design (included in Technical Manual)

📄 Warranty Terms & Conditions – Full 2-year comprehensive warranty documentation (supplied with unit)

📄 Parts List & Exploded View – Complete spare parts reference for maintenance planning (included in Technical Manual)

All documentation includes technical support contact information and guidance on proper installation procedures to ensure optimal performance and warranty compliance.

🏆 Why Choose the Certikin Hydrostar WHSR0553?

✅ Proven Commercial-Grade Reliability: Backed by Waterco Limited’s decades of commercial pool equipment engineering and Certikin’s trusted UK distribution network, ensuring parts availability and technical support when you need it

✅ Superior Energy Efficiency: Three-phase motor technology with exceptionally low 5.8A current draw delivers substantial annual operating cost savings compared to older single-phase pumps and less efficient three-phase alternatives, protecting your facility against rising UK commercial electricity rates

✅ Advanced Material Engineering: Composite plastic construction provides superior chemical resistance compared to bronze or cast iron, eliminating corrosion-related failures while reducing pump weight by 40-60% for easier installation and maintenance

✅ Comprehensive Protection: IP55 motor protection ensures reliable operation in demanding wet commercial environments, while IPX5 pump rating protects against water ingress from splash, spray, and cleaning operations

✅ Flexible Installation Options: Included 3″ and 90mm socket unions accommodate various plumbing configurations, making this pump ideal for both new construction and retrofit/replacement projects without expensive plumbing modifications

✅ Reduced Maintenance Requirements: Massive lockable strainer basket with clear polycarbonate lid reduces cleaning frequency and allows visual inspection without disassembly, while quarter-turn lock mechanism enables rapid maintenance during facility operating hours

✅ Genuine OEM Quality: Every WHSR0553 is 100% factory wet tested before shipping and comes with comprehensive 2-year warranty, providing confidence in long-term reliability and protection against premature failures common with economy alternatives

✅ Long-Term Value: European motor engineering (E.M.G. Italy), glass-filled Noryl impeller/diffuser, and high-grade carbon-graphite mechanical seals ensure extended service life that justifies the initial investment through years of dependable operation

✅ Technical Support Access: As a Certikin-distributed product, you gain access to UK-based technical support, readily available replacement parts through established distribution channels, and documentation in English with UK electrical standards compliance

✅ Future-Proof Investment: With three-phase power becoming increasingly standard in commercial facilities and energy efficiency regulations tightening, the WHSR0553 represents a forward-looking investment that won’t require premature replacement as standards evolve

🛒 Why Buy From Parts4Tubs?

✅ Authorized Certikin Dealer: We supply genuine factory-direct Certikin products with full manufacturer warranty protection and authentic OEM quality assurance

✅ Competitive Commercial Pricing: Volume purchasing power allows us to offer professional-grade equipment at prices that work for facility budgets, municipal purchasing requirements, and contractor margins

✅ Rapid Dispatch: Stock held in UK warehouse enables same-day or next-day dispatch on most orders, minimizing facility downtime during replacement projects

✅ Technical Expertise Available: Our team understands commercial pool systems and can provide application guidance, sizing assistance, and installation advice to ensure proper pump selection for your specific requirements

✅ Complete Documentation: All products ship with full technical manuals, warranty cards, and installation instructions—no missing paperwork or incomplete documentation

✅ Established Reputation: Years of serving the UK commercial pool industry have built our reputation for reliability, product knowledge, and customer service that facility managers and contractors depend upon

✅ Simple Ordering Process: Commercial accounts welcome, with flexible payment terms available for established businesses, councils, and facilities management companies

✅ After-Sales Support: We stand behind every product we sell with responsive customer service and assistance with any warranty claims or technical questions that arise post-installation

✨ Summary

The Certikin Hydrostar WHSR0553 5.5HP three-phase commercial pump delivers the powerful performance, energy efficiency, and long-term reliability that large-scale aquatic facilities demand. With its exceptionally low 5.8 amp current draw, advanced composite construction, and proven European motor engineering, this pump provides substantial annual operating cost savings while ensuring years of dependable service in demanding commercial environments.

Whether you’re managing a municipal pool, hotel resort, water park, or leisure center, the WHSR0553 offers the perfect combination of commercial-grade capability, operational efficiency, and installation flexibility. Backed by comprehensive 2-year warranty and Certikin’s established support network, this represents a smart long-term investment for facilities serious about performance, reliability, and total cost of ownership.

Make the intelligent choice for your commercial aquatic facility—choose the Certikin Hydrostar WHSR0553 and experience the difference that genuine commercial engineering makes in daily operations and annual operating budgets.