💧 Waterco Hydrostar Plus 10.00hp (7.5kW) 3 Phase Commercial Pool Pump

🌊 Industrial-Grade Performance for High-Volume Aquatic Facilities – Built to Move Serious Water, Day After Day

📋 Product Overview

The Waterco Hydrostar Plus 10.00hp 3 Phase Pump represents the pinnacle of commercial pool circulation technology, engineered specifically for aquatic centres, water parks, and large commercial swimming facilities demanding uncompromising flow rates and bulletproof reliability.

This Australian-designed powerhouse combines a robust 7.5kW three-phase motor with Waterco’s renowned corrosion-resistant thermoplastic construction, delivering exceptional hydraulic efficiency while withstanding the demanding chemical environment of commercial pool operations. The heavy-duty IP55 weather-proofed motor with 431 stainless steel shaft ensures reliable operation across all climate conditions, whilst the oversized 6″ ANSI flanged suction port and 4″ JIS flanged discharge maximise water throughput for high-volume applications.

Purpose-built for facilities requiring flow rates up to 2,500+ litres per minute, the Hydrostar Plus series offers commercial pool operators significant advantages over traditional cast iron alternatives – including superior chemical resistance, reduced maintenance costs, and approximately 30% lighter weight for easier installation.

Ideal for: Municipal swimming pools, leisure centres, hotel resort pools, water parks, large fitness centre pools, and commercial aquatic facilities requiring high-volume circulation.

⭐ Key Features

✅ Heavy-Duty 7.5kW Three-Phase Motor – Premium IE3-rated motor delivers exceptional efficiency with 14.6 amp draw at 380-415V, running at 2,940 RPM for maximum hydraulic performance

✅ IP55 Weather-Proofed Construction – Fully sealed motor housing protects internal components from dust ingress, water jets, and harsh outdoor environments

✅ 431 Stainless Steel Motor Shaft – Marine-grade stainless steel resists corrosion and ensures decades of reliable rotational integrity

✅ 16-Litre Moulded Polypropylene Strainer Basket – Extra-large capacity reduces cleaning frequency and captures debris before it reaches the impeller

✅ Clear Polycarbonate Strainer Lid – Instant visual inspection of basket condition without system shutdown – saves time during routine checks

✅ 6″ ANSI Flanged Suction Port – Oversized inlet minimises friction losses and maximises priming efficiency for above-water installations

✅ 4″ JIS Flanged Discharge Port – Industry-standard outlet connection ensures compatibility with commercial piping systems

✅ UV-Stabilised Glass-Filled Polypropylene Housing – Exceptional chemical and corrosion resistance outlasts traditional cast iron in chlorinated environments

✅ Enclosed Glass-Filled Noryl Impeller – Long-lasting reliability with superior resistance to pool chemicals and abrasive particles

✅ High-Grade Mechanical Seal – Carbon/graphite seal with 316 stainless steel components prevents leakage and extends service life

✅ Quarter-Turn Lid Lock Ring – Ergonomic handles enable quick basket access without tools

✅ Dual Winterising Drain Plugs – Easy seasonal shutdown protects pump internals from frost damage

✅ Integral Support Base – Built-in mounting platform ensures stable, vibration-free installation

🔧 Technical Specifications

Specification	Details
Model	Hydrostar Plus 7.5kW
Motor Input Power	7.5 kW
Nominal Power Output	8.3 kW
Horsepower Rating	10.00hp (11.1hp nominal)
Amperage	14.6 Amps
Phase	3 Phase
Voltage	380-415V
Frequency	50 Hz
Motor Speed	2,940 RPM
Motor Frame Size	132
IP Rating	IPX5
Suction Port	6″ ANSI Flange (150mm)
Discharge Port	4″ JIS Flange (100mm)
Strainer Basket Capacity	16 Litres
Total Weight	75 kg
Total Length	1,190 mm
Width	603 mm
Height	521.7 mm
Operating Temperature Range	4°C to 40°C
Maximum Pressure Rating	35 PSI
Wiring Configuration	WYE / STAR
Shaft Material	431 Stainless Steel
Impeller Material	Glass-Filled Noryl
Pump Body Material	UV-Stabilised GF Polypropylene
Seal Type	Carbon/Graphite with 316SS

💰 Usage Costs & Running Expenses

Understanding operational costs is essential for commercial facility managers budgeting for filtration system expenses. The Hydrostar Plus 7.5kW offers excellent performance-to-efficiency ratios for high-volume applications.

📊 Annual Running Cost Calculation

Base Calculation Parameters:

• Motor Input Power: 7.5 kW
• UK Commercial Electricity Rate: £0.27 per kWh (November 2025 average)
• UK Residential Electricity Rate: £0.2635 per kWh (Ofgem Price Cap Q4 2025)

🏢 Scenario 1: Municipal Swimming Pool (Year-Round Operation)

A typical municipal leisure centre pool requiring continuous filtration:

Usage Profile:

• Operating Hours: 12 hours/day
• Days Per Year: 365 days
• Total Annual Hours: 4,380 hours

💷 Annual Cost Calculation:

7.5 kW × 4,380 hours × £0.27/kWh = £8,869.50 per year

Monthly Average: £739.13

🌊 Scenario 2: Commercial Water Park (Seasonal Operation)

A seasonal water park facility operating during peak months:

Usage Profile:

• Operating Hours: 14 hours/day
• Operating Season: 180 days (April-September)
• Total Annual Hours: 2,520 hours

💷 Annual Cost Calculation:

7.5 kW × 2,520 hours × £0.27/kWh = £5,103.00 per year

Cost Per Operating Day: £28.35

♨️ Scenario 3: Hotel Resort Pool (Extended Season)

A hotel resort pool with heated operation through shoulder seasons:

Usage Profile:

• Operating Hours: 10 hours/day
• Operating Days: 270 days (March-November)
• Total Annual Hours: 2,700 hours

💷 Annual Cost Calculation:

7.5 kW × 2,700 hours × £0.27/kWh = £5,467.50 per year

Monthly Average (Operating Months): £607.50

⚡ Energy Efficiency Comparison

Pump Size	Daily Cost (12hr)	Monthly Cost	Annual Cost (365 days)
❌ 11kW (15hp)	£35.64	£1,069.20	£13,009.86
❌ 9.5kW (12.5hp)	£30.78	£923.40	£11,234.70
✅ 7.5kW (10hp)	£24.30	£729.00	£8,869.50
5.5kW (7.5hp)	£17.82	£534.60	£6,503.94

💰 Choosing the right-sized pump matters! Selecting a properly matched 7.5kW unit over an oversized 11kW pump saves approximately £4,140 per year on a continuously operating installation.

🎯 Real World Examples & Applications

🏊 Municipal Leisure Centre Pools

The Hydrostar Plus 7.5kW excels in public swimming facilities requiring reliable, high-volume turnover. With flow rates capable of exceeding 2,000 litres per minute at moderate head pressures, this pump can effectively circulate pools up to 1,000m³ within recommended turnover times. The clear strainer lid proves invaluable for busy facility staff conducting quick visual inspections between cleaning cycles.

🌊 Water Parks & Splash Pads

Commercial water parks demand pumps capable of handling high debris loads whilst maintaining consistent pressure. The 16-litre strainer basket capacity reduces maintenance intervals during peak visitor periods, whilst the corrosion-resistant thermoplastic construction withstands aggressive water treatment regimes common in high-bather-load environments.

🏢 Hotel & Resort Swimming Facilities

Resort operators appreciate the Hydrostar Plus’s quiet operation (typically 74-78 dBA at maximum flow) and weather-resistant construction. The pump’s ability to handle both continuous circulation and periodic high-demand scenarios makes it ideal for properties balancing guest comfort with operational efficiency.

🔄 Plant Room Upgrades & Retrofits

Facilities upgrading from older cast iron pumps benefit from the Hydrostar Plus’s lighter weight (approximately 30% less than equivalent cast iron units) and reduced maintenance requirements. The glass-filled thermoplastic construction eliminates rust formation common in damp plant room environments, extending operational lifespan significantly.

🏋️ Fitness Centre & Spa Complexes

Large health club installations with multiple water features benefit from the pump’s ability to handle complex piping configurations whilst maintaining steady flow rates. The high-grade mechanical seal minimises leak risk in facilities where water damage could affect adjacent gym equipment or changing areas.

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💡 Cost Savings Examples

📍 Scenario: Upgrading from an Oversized 11kW System

Many facilities operate pumps that exceed actual hydraulic requirements. Replacing an oversized 11kW pump with a correctly specified 7.5kW Hydrostar Plus delivers immediate savings:

Factor	❌ Old 11kW Pump	✅ Hydrostar Plus 7.5kW
Power Draw	11 kW	7.5 kW
Annual Hours	4,380	4,380
Energy Cost/kWh	£0.27	£0.27
Annual Cost	£13,009.86	£8,869.50

💷 Annual Saving: £4,140.36

⏱️ 5-Year Saving: £20,701.80

📈 10-Year Saving: £41,403.60

At a purchase price of £3,004.56, the energy savings alone deliver payback within approximately 9 months when replacing an oversized system.

📍 Scenario: Replacing Worn Cast Iron Pump with Reduced Efficiency

Older cast iron pumps often operate at 15-25% reduced efficiency due to impeller wear and internal corrosion. Replacing a degraded system restores full hydraulic performance whilst reducing energy consumption:

Assumptions:

• Original pump: 7.5kW operating at 80% efficiency (effective 9.4kW draw)
• New Hydrostar Plus: 7.5kW at rated efficiency
• Annual operating hours: 4,000

Factor	❌ Worn Pump (80% eff.)	✅ New Hydrostar Plus
Effective Power Draw	9.4 kW	7.5 kW
Annual Hours	4,000	4,000
Annual Cost	£10,152.00	£8,100.00

💷 Annual Saving: £2,052.00

⏱️ Payback Period: Approximately 18 months

📍 Scenario: Variable Speed Drive Integration

Pairing the Hydrostar Plus with a variable frequency drive (VFD) enables substantial additional savings by matching pump speed to actual demand:

Typical VFD Savings on Commercial Pool Pumps:

• Low-demand periods (night circulation): 50-70% energy reduction
• Medium-demand periods: 20-40% energy reduction
• Peak periods: Full-speed operation

Conservative Annual Savings Estimate (30% average reduction):

Standard annual cost: £8,869.50
With VFD (30% saving): £6,208.65
💰 Additional annual saving: £2,660.85

Combined with right-sizing benefits, total savings can exceed £6,800 annually compared to oversized, fixed-speed installations.

📥 Downloads & Resources

Access comprehensive technical documentation to support your installation and operation:

📄 Commercial Pump Owners Manual – Complete installation, operation, maintenance, and troubleshooting guide covering Hydrostar Plus, Hydrostar MK3, Hydrosteel, and Cast Iron pump ranges Download Manual (PDF)

📄 Commercial Pumps Technical Brochure – Detailed specifications, performance curves, sound level data, and dimensional drawings for Hydrostar MKIV and Hydrostar Plus ranges Download Brochure (PDF)

🛒 Why Buy From Parts4Tubs?

✅ Competitive Pricing – Trade-level pricing on genuine Waterco commercial equipment with no hidden charges

✅ Stock Availability – Pump in stock and ready for immediate dispatch to minimise your facility downtime

✅ Expert Technical Support – Knowledgeable team available to assist with specification queries and installation guidance

✅ Fast UK Delivery – Reliable shipping to commercial addresses throughout the United Kingdom

✅ Genuine Manufacturer Products – Authentic Waterco equipment with full manufacturer warranty support

✅ Commercial Account Options – Flexible payment terms available for trade customers and facility management companies

✅ Comprehensive Warranty – Backed by Waterco’s commercial warranty: 2 years on wet ends, baskets, impellers & diffusers; 1 year on motor and mechanical seal

✨ Summary

The Waterco Hydrostar Plus 10.00hp (7.5kW) 3 Phase Pump delivers the robust, efficient performance that commercial aquatic facilities demand. Combining industrial-grade construction with proven reliability, this pump offers facility managers the confidence of continuous operation whilst maintaining competitive running costs. With its corrosion-resistant thermoplastic body, oversized strainer basket, and heavy-duty three-phase motor, the Hydrostar Plus represents an outstanding investment for any high-volume pool circulation application.