💧 LA Sta-Rite VS2M 1.5HP Variable Speed Pump

The Industry-Standard Premium Pool Pump – Save Up to 70% on Energy Bills While Enjoying Whisper-Quiet Operation

📋 Product Overview

The LA Sta-Rite VS2M represents the pinnacle of variable speed pump technology from Pentair, one of the world’s most trusted names in pool equipment. This premium 1.5HP pump features an innovative oversized 3HP asynchronous motor that has been professionally derated to deliver exceptional efficiency and reliability across all operating speeds.

Engineered for pools ranging from 30 to 80 cubic metres, the VS2M combines cutting-edge permanent magnet motor technology with an intuitive LCD control system, allowing you to programme three distinct speed settings plus an override function. The result is a pump that adapts precisely to your pool’s filtration, heating, and cleaning requirements whilst dramatically reducing energy consumption.

Whether you’re managing a residential pool, spa system, water feature, or commercial installation, the VS2M delivers professional-grade performance with running costs that can be up to 70% lower than traditional single-speed alternatives. Built for durability with salt-water compatibility up to 0.40% and complete with unions for straightforward installation, this is a pump designed to provide years of trouble-free service.

⭐ Key Features

• ✅ Oversized 3HP Motor Derated to 1.5HP – Delivers exceptional efficiency and reliability, running cooler and lasting longer than standard motors under demanding conditions
• ✅ Three Programmable Speeds Plus Override – Set low, medium, and high speeds for different tasks, with manual override when you need maximum performance
• ✅ Intuitive LCD Display – Real-time monitoring of watts, RPM, and run time helps you track energy usage and optimise performance
• ✅ Up to 70% Energy Savings – Dramatically reduce electricity costs compared to traditional single-speed pumps through intelligent variable speed operation
• ✅ 75% Quieter Operation – Running 20dB quieter than standard pumps, enjoy peaceful poolside relaxation without intrusive motor noise
• ✅ High Head Impellers – Ideal for installations where the pump room is positioned far from the pool, maintaining strong flow across longer pipe runs
• ✅ Stainless Steel Locking Clamp & XL Pre-Filter Basket – Quick maintenance access and extended intervals between cleaning
• ✅ Salt Water Compatible (0.40%) – Fully resistant to salt chlorination systems up to 4g/l concentration
• ✅ 4 Digital Inputs for External Control – Integrate with automation systems using the optional communication cable (PN. 356324Z)
• ✅ Unions Included – Complete installation kit with 50mm ID unions for straightforward connection

🔧 Technical Specifications

Specification	Detail
Model	LA Sta-Rite VS2M
Part Number	P-STR-VS2
SKU	PAC-100-0049
Motor Type	Permanent Magnet (Oversized 3HP derated to 1.5HP)
Power Output	1.1 kW (1.5 HP)
Voltage	220-240V
Phase	Single Phase (1~)
Pool Size Range	30-80 m³
Inlet/Outlet	1.5″ BSP
Union Diameter	50mm ID
Unions Included	Yes
Salt Resistance	0.40% (4 g/l)
Programmable Speeds	3 + Override
Display Type	LCD (Watts, RPM, Time)
External Control	4 Digital Inputs
Length	560mm
Weight	22.6 kg
Packaging Dimensions	790mm × 370mm × 430mm

Performance Curve Data (Flow Rate @ 8m Head)

RPM Setting	Approximate Flow
1100 RPM	Low speed – ideal for continuous filtration
1600 RPM	Economy speed – balanced efficiency
2100 RPM	Medium speed – standard operation
2600 RPM	Enhanced speed – improved circulation
3100 RPM	High speed – intensive filtration
3450 RPM	Maximum speed – backwash and spa jets

💰 Usage Costs & Running Expenses

Understanding your running costs is essential when choosing a pool pump. Variable speed technology delivers substantial savings compared to traditional single-speed pumps.

📊 Annual Running Cost Calculation

Pump Specifications:

• Maximum Power: 1.1 kW
• Typical Operating Power at Medium Speed: 0.4 kW
• Low Speed Power Consumption: 0.15 kW

Current UK Energy Pricing (Q4 2025):

• Standard Electricity Rate: £0.2635 per kWh (Ofgem Price Cap)
• Rates vary by region from £0.25 to £0.28 per kWh

🏊 Residential Pool – Seasonal Use (6 Months)

Scenario: Running at medium speed (0.4 kW) for 8 hours daily during swimming season

Parameter	Calculation
Daily Running Hours	8 hours
Operating Period	180 days (April-September)
Annual Hours	1,440 hours
Power at Medium Speed	0.4 kW
Energy Consumption	0.4 kW × 1,440 hrs = 576 kWh
✅ Annual Cost	576 kWh × £0.2635 = £151.74

♨️ Year-Round Operation (Heated Pool/Spa)

Scenario: Running at low speed (0.15 kW) for 12 hours daily, all year

Parameter	Calculation
Daily Running Hours	12 hours
Operating Period	365 days
Annual Hours	4,380 hours
Power at Low Speed	0.15 kW
Energy Consumption	0.15 kW × 4,380 hrs = 657 kWh
✅ Annual Cost	657 kWh × £0.2635 = £173.12

🏢 Commercial Installation – Extended Operation

Scenario: Running at higher speeds (0.75 kW average) for 16 hours daily, year-round

Parameter	Calculation
Daily Running Hours	16 hours
Operating Period	365 days
Annual Hours	5,840 hours
Average Power	0.75 kW
Energy Consumption	0.75 kW × 5,840 hrs = 4,380 kWh
✅ Annual Cost	4,380 kWh × £0.2635 = £1,154.13

💡 Cost Savings Examples

The real value of the VS2M becomes clear when comparing against traditional single-speed pumps and older equipment.

📍 Scenario 1: Replacing a 1.5HP Single-Speed Pump

Comparison – Residential Pool (8 hrs/day, 180 days)

Pump Type	Power	Annual kWh	Annual Cost
❌ Traditional Single-Speed 1.5HP	1.1 kW (constant)	1,584 kWh	£417.38
✅ VS2M at Medium Speed	0.4 kW (variable)	576 kWh	£151.74

💰 Annual Saving: £265.64 📈 Saving Percentage: 64% ⏱️ Payback Period: Based on typical pump pricing, recoup investment within 2-3 seasons

📍 Scenario 2: Year-Round Heated Pool Upgrade

Comparison – 12 hours daily, 365 days

Pump Type	Power	Annual kWh	Annual Cost
❌ Old Single-Speed Running Continuously	1.1 kW	4,818 kWh	£1,269.54
✅ VS2M at Low Speed	0.15 kW	657 kWh	£173.12

💷 Annual Saving: £1,096.42 📈 Saving Percentage: 86% ⏱️ Payback Period: Less than 1 year

📍 Scenario 3: Commercial Pool Facility

Comparison – Hotel/Leisure Centre (16 hrs/day, 365 days)

Pump Type	Power	Annual kWh	Annual Cost
❌ Commercial Single-Speed 2HP	1.5 kW	8,760 kWh	£2,308.26
✅ VS2M Optimised Operation	0.75 kW average	4,380 kWh	£1,154.13

💷 Annual Saving: £1,154.13 📈 5-Year Saving: £5,770.65 ⏱️ Payback Period: Under 1 year for typical commercial installations

Long-Term Investment Analysis

Investment Period	Energy Savings	Cumulative Benefit
Year 1	£265 – £1,150	Potential full payback
Year 3	£795 – £3,450	2-3× initial investment
Year 5	£1,325 – £5,750	Major lifetime savings
Year 10	£2,650 – £11,500+	Exceptional ROI

Calculations based on current Ofgem Price Cap rates (£0.2635/kWh). Actual savings depend on your current pump, usage patterns, and electricity tariff.

🎯 Real World Examples & Applications

🏊‍♂️ Residential In-Ground Pools (30-60 m³)

The VS2M excels in domestic pool applications where quiet operation and energy efficiency are priorities. Programme low speed for overnight filtration, medium speed for daily circulation, and high speed for weekly backwashing. Homeowners appreciate the LCD display that shows exactly how much power the pump is consuming in real-time.

🛁 Spa & Hot Tub Systems

Perfect for dedicated spa circulation where the pump may run extended hours to maintain temperature. The low-speed operation draws minimal power whilst providing adequate flow for heating and filtration. Salt-water compatibility (0.40%) makes it ideal for salt chlorinated spa systems.

🌊 Water Features & Fountains

The variable speed capability allows precise flow adjustment for water features, ensuring optimal display whilst minimising energy waste. High head impellers maintain strong flow even with elevated fountain installations or long pipe runs from the plant room.

🏢 Commercial Installations

Hotels, holiday parks, and leisure centres benefit from the VS2M’s robust construction and efficient operation. The oversized motor (3HP derated to 1.5HP) provides built-in reliability margins for demanding commercial schedules. Four digital inputs allow integration with Building Management Systems (BMS).

🔄 Upgrade & Replacement Projects

Ideal for replacing aging single-speed pumps where pool owners want to reduce energy bills without major system modifications. The 1.5″ BSP connections and included unions allow straightforward retrofit installation in most existing pump houses.

📥 Downloads & Resources

📄 LA Sta-Rite VS2 Technical Datasheet – Complete specifications, dimensions, and performance curves (PDF)

🛒 Why Buy From Parts4Tubs?

• ✅ Genuine Pentair Product – Authentic LA Sta-Rite equipment with full manufacturer backing
• ✅ Competitive Pricing – Excellent value on premium pool equipment
• ✅ Expert Technical Support – Knowledgeable team available for sizing and installation guidance
• ✅ Fast UK Delivery – Efficient dispatch on stock items
• ✅ Established Reputation – Trusted supplier of quality pool and spa equipment

🏆 Why Choose the LA Sta-Rite VS2M?

• ✅ Proven Technology – The industry standard and classic variable speed pump from Pentair, trusted by pool professionals worldwide
• ✅ Exceptional Energy Efficiency – Save up to 70% on electricity bills compared to single-speed alternatives
• ✅ Whisper-Quiet Operation – 75% quieter than standard pumps for peaceful poolside enjoyment
• ✅ Built for Reliability – Oversized 3HP motor derated to 1.5HP ensures cool running and extended service life
• ✅ Intelligent Control – LCD display with real-time monitoring of watts, RPM, and operating time
• ✅ Versatile Application – Suitable for pools 30-80m³, spas, water features, and commercial installations
• ✅ Salt Water Compatible – Fully resistant to salt chlorination up to 0.40% (4g/l)
• ✅ Easy Integration – Four digital inputs for connection to external control and automation systems

✨ Summary

The LA Sta-Rite VS2M 1.5HP Variable Speed Pump represents the perfect balance of performance, efficiency, and reliability. With potential energy savings of up to 70% compared to traditional pumps, whisper-quiet operation, and an intuitive control system, this Pentair classic delivers outstanding value for residential and commercial pool applications alike. The robust oversized motor construction and salt-water compatibility ensure years of dependable service, making the VS2M an investment that pays for itself whilst elevating your pool experience.