💧 Malawi 1HP Pool Pump – Three Phase | Direct Sta-Rite 5P2R Replacement (M00594-3PHASE)

Professional-Grade Commercial Pool Pump with Seamless Drop-In Installation & Superior Three-Phase Efficiency

📋 Product Overview

The Malawi 1HP Three-Phase Pool Pump (Model M00594) delivers exceptional performance as a direct drop-in replacement for the renowned Sta-Rite 5P2R series. Engineered using the latest generation thermoplastics and featuring a robust three-phase motor, this pump provides commercial-grade reliability with significantly improved energy efficiency over single-phase alternatives.

Designed specifically for demanding commercial and industrial applications, the Malawi pump maintains identical mounting points and plumbing connections to the Sta-Rite 5P2R, ensuring zero downtime during replacement with no system modifications required. The integrated pre-filter system protects hydraulic components from debris damage whilst the IP55-rated motor withstands high humidity environments and elevated ambient temperatures.

Whether you’re upgrading an ageing Sta-Rite installation or specifying equipment for a new commercial pool project, the Malawi 1HP Three-Phase delivers the consistent power, balanced operation, and extended service life that facility managers demand.

⭐ Key Features

✅ Direct Sta-Rite 5P2R Replacement – Identical mounting points and plumbing connections for true drop-in installation with zero system modifications

✅ Three-Phase Industrial Motor – 380-415V operation delivers superior starting torque, balanced power distribution, and consistent performance under varying loads

✅ Self-Priming Design – Fast priming action with maximum head capability of 17 metres and nominal flow rate of 16 m³/h

✅ IP55 Weather Protection – Motor designed for demanding environments with high humidity and elevated ambient temperatures

✅ Latest Generation Thermoplastics – Pump body constructed from advanced materials offering exceptional strength, corrosion resistance, and temperature stability

✅ Integrated Pre-Filter System – 3-litre capacity strainer basket prevents debris from damaging hydraulic components whilst maintaining optimal flow

✅ TEFC Motor Construction – Totally Enclosed Fan Cooled design with permanently lubricated bearings for extended operational life and reduced maintenance

✅ Energy Efficient Operation – Three-phase motor configuration inherently provides 15-20% better efficiency compared to single-phase equivalents

✅ Heavy-Duty Seal Assembly – Commercial-grade mechanical seal designed for extended service in chlorinated water conditions

✅ Low Noise Operation – Balanced hydraulic design ensures quiet running suitable for noise-sensitive commercial environments

🔧 Technical Specifications

Specification	Detail
Model Number	M00594 (Adapt Pro ST Series)
Power Rating	1 HP (0.75 kW)
Electrical Supply	Three Phase
Voltage	380-415V
Frequency	50Hz
Motor Protection	IP55
Maximum Head	17 metres
Nominal Flow Rate	16 m³/h
Nominal Head	10 metres
Motor Speed	2810 RPM
Strainer Basket Volume	3 litres
Motor Type	TEFC (Totally Enclosed Fan Cooled)
Port Connections	1½” BSP
Dimensions (L × W × H)	565 × 230 × 265 mm
Direct Replacement For	Sta-Rite 5P2RE-3 (1HP Three-Phase)

Dimensional Reference

Dimension	Measurement
A (Total Length)	565 mm
B (Width)	230 mm
C (Height)	265 mm
D (Port Diameter)	1½”
E	388 mm
F	246 mm
G	332 mm
H	142 mm
I	254 mm

💰 Usage Costs & Running Expenses

Understanding your operational costs is essential for commercial pool management. Below we calculate realistic running costs based on typical usage patterns and current UK energy prices.

📊 Annual Running Cost Calculation

Assumptions:

• Power consumption: 0.75 kW
• UK commercial electricity rate: £0.27 per kWh (November 2025 average)
• Usage scenarios based on typical commercial pool operations

🏊 Scenario 1: Standard Commercial Pool (8 hours daily, seasonal)

Parameter	Value
Daily operation	8 hours
Operating season	180 days (April – September)
Annual running hours	1,440 hours
Energy consumption	0.75 kW × 1,440 hrs = 1,080 kWh
✅ Annual running cost	£291.60

🏢 Scenario 2: Year-Round Indoor Pool (10 hours daily)

Parameter	Value
Daily operation	10 hours
Operating days	365 days
Annual running hours	3,650 hours
Energy consumption	0.75 kW × 3,650 hrs = 2,737.5 kWh
✅ Annual running cost	£739.13

☀ Scenario 3: Light Commercial/Holiday Park (6 hours daily, peak season)

Parameter	Value
Daily operation	6 hours
Operating season	120 days (June – August)
Annual running hours	720 hours
Energy consumption	0.75 kW × 720 hrs = 540 kWh
✅ Annual running cost	£145.80

💡 Cost Savings Examples

Upgrading to the Malawi 1HP Three-Phase pump delivers measurable savings compared to older single-phase equipment and less efficient alternatives.

📍 Scenario: Replacing Ageing Single-Phase Equipment

Many facilities still operate legacy single-phase pumps with typical power draws of 0.90–1.0 kW for equivalent 1HP output due to motor inefficiencies.

Comparison: Old Single-Phase 1HP (0.90 kW) vs Malawi Three-Phase (0.75 kW)

Factor	❌ Old Single-Phase	✅ Malawi Three-Phase
Power consumption	0.90 kW	0.75 kW
Annual hours (year-round pool)	3,650 hrs	3,650 hrs
Annual energy use	3,285 kWh	2,737.5 kWh
Annual cost (@ £0.27/kWh)	£887.00	£739.13
Annual saving	—	💰 £147.87

📈 Long-Term Savings Projection

Timeframe	Cumulative Saving
Year 1	£147.87
Year 3	£443.61
Year 5	£739.35
⏱ Year 10	💷 £1,478.70

📍 Scenario: Municipal Pool Upgrade from 1.5HP Oversized Pump

Many facilities operate oversized pumps specified during initial construction. Replacing an oversized 1.5HP pump (1.10 kW) with a correctly sized 1HP unit delivers significant savings.

Comparison: Oversized 1.5HP vs Right-Sized 1HP

Factor	❌ Oversized 1.5HP	✅ Right-Sized 1HP
Power consumption	1.10 kW	0.75 kW
Annual hours	3,650 hrs	3,650 hrs
Annual energy use	4,015 kWh	2,737.5 kWh
Annual cost (@ £0.27/kWh)	£1,084.05	£739.13
Annual saving	—	💰 £344.92
⏱ Payback period	—	Under 2 years

🎯 Real World Examples & Applications

🏊‍♂️ Commercial Swimming Pools

Ideal for municipal leisure centres, private club pools, and commercial aquatic facilities with volumes up to 100,000 litres. The consistent three-phase power delivery ensures reliable filtration during peak usage periods when water quality demands are highest.

Typical installation: Main circulation pump for 50-75m³ pools with 4-6 hour turnover requirements.

🏢 Hotels & Hospitality

Perfect for hotel pool installations requiring reliable, quiet operation in guest-facing environments. The balanced three-phase motor minimises vibration and noise whilst delivering the consistent flow rates essential for maintaining pristine water quality in high-use facilities.

Performance expectation: 8-10 hours daily operation with minimal maintenance intervention throughout the season.

🔄 Sta-Rite 5P2R Replacement Projects

Purpose-designed for direct replacement of existing Sta-Rite 5P2R installations approaching end-of-life or requiring upgraded efficiency. Identical footprint and connections eliminate costly pipework modifications and reduce installation time to typically 2-3 hours.

Maintenance consideration: Standard service intervals align with existing maintenance schedules.

🌊 Water Features & Fountains

Suitable for commercial water features, decorative fountains, and architectural water installations requiring reliable circulation. The self-priming capability handles installations with complex pipework layouts and varying suction conditions.

Installation context: Water features in shopping centres, corporate headquarters, and public spaces.

♨️ Wellness & Spa Facilities

Supports heated pool circuits and spa overflow systems where consistent flow rates are essential for maintaining temperature distribution and surface skimming effectiveness.

Application note: Particularly effective for counter-current swimming units and massage stations requiring reliable high-flow delivery.

📥 Downloads & Resources

📄 Adapt Pro ST Technical Datasheet – Complete performance curves, dimensional drawings, and specifications for the full Adapt Pro ST range including M00594

🏆 Why Choose This Product

✅ True Drop-In Replacement – Identical dimensions to Sta-Rite 5P2R eliminates pipework modifications and reduces installation time dramatically

✅ Three-Phase Efficiency – Inherent motor efficiency advantages deliver 15-20% energy savings compared to single-phase equivalents

✅ Commercial-Grade Construction – Latest generation thermoplastics and IP55-rated motor built for continuous operation in demanding environments

✅ Proven Performance – Engineered to match or exceed original Sta-Rite 5P2R specifications with 16 m³/h nominal flow and 17m maximum head

✅ Reduced Lifetime Costs – Lower energy consumption combined with extended service life delivers measurable return on investment

✅ Professional Support – Comprehensive technical documentation and expert backup from Parts4Tubs

🛒 Why Buy From Parts4Tubs?

✅ Specialist Expertise – Dedicated pool and spa equipment supplier with in-depth product knowledge

✅ Competitive Pricing – Trade and retail pricing on genuine quality components

✅ Fast UK Delivery – Prompt dispatch to minimise your installation downtime

✅ Technical Support – Expert advice available to ensure you select the right pump for your application

✅ Quality Guarantee – All products supplied with full manufacturer warranty protection

✨ Summary

The Malawi 1HP Three-Phase Pool Pump (M00594) represents the smart choice for facilities seeking a reliable, energy-efficient replacement for ageing Sta-Rite 5P2R installations. With true drop-in compatibility, proven three-phase efficiency delivering annual savings of £100-350 depending on usage patterns, and commercial-grade construction built for continuous operation, this pump delivers exceptional value for professional pool operators. Upgrade your installation today and benefit from reduced running costs, improved reliability, and extended service life.