💧 Certikin Swimflo HPS031M: Reliable 0.3HP Pump for Domestic Pool Filtration

Compact, Efficient, and Built to Last – Perfect for Small to Medium Residential Pools

📋 Product Overview

The Certikin Swimflo HPS031M is a purpose-built 0.3HP (0.24kW) single-phase pump designed specifically for domestic swimming pool filtration. This self-priming pump combines robust construction with efficient operation, making it an ideal choice for homeowners seeking reliable, low-maintenance pool circulation without the complexity or cost of larger commercial systems.

Constructed from durable thermoplastic materials of the latest generation, the HPS031M incorporates an integrated pre-filter to protect hydraulic components from debris and foreign objects. With 1.5″ suction and delivery connections, this pump delivers consistent performance while maintaining energy efficiency that helps keep running costs manageable. The IP-55 rated motor is specifically designed to withstand the hot, humid environments typical of pool installations, ensuring long-term reliability even in challenging conditions.

Whether you’re maintaining a small family pool, hot tub, or water feature, the Swimflo HPS031M offers the perfect balance of power, efficiency, and value for residential applications.

⭐ Key Features

✅ Self-Priming Operation – Automatically maintains prime and reduces the likelihood of airlocks, ensuring consistent performance with minimal intervention

✅ Integrated Pre-Filter Protection – Built-in strainer basket prevents debris entry and protects sensitive hydraulic components from damage, reducing maintenance requirements

✅ Durable Thermoplastic Construction – One-piece body made from latest-generation resistant composite materials ensures long service life and resistance to chemical degradation

✅ Salt Chlorination Compatible – Suitable for both traditional chlorine and modern salt chlorination systems, offering versatility for current and future pool maintenance methods

✅ IP-55 Motor Protection – Industrial-grade motor protection rated to withstand high humidity and elevated temperatures common in pool environments

✅ Noryl Impeller with Stainless Steel Shaft – High-quality materials ensure smooth, efficient operation and resistance to corrosion and wear

✅ Class F Continuous Rating Motor – Designed for extended operation periods with thermal protection for reliable, worry-free performance

✅ Quick Connect Unions Included – Supplied with 1.5″ quick connect unions for straightforward installation and easy maintenance access

✅ 2-Year Manufacturer Warranty – Comprehensive coverage provides peace of mind and protection for your investment

🔧 Technical Specifications

Specification	Details
Model	Certikin Swimflo HPS031M
Power Rating	0.3HP (0.24kW)
Phase	Single phase
Voltage	230V
Frequency	50Hz
Maximum Head	11 metres
Connection Size	1.5″ (50mm) suction & delivery
Connection Type	Quick connect unions (included)
Motor Protection	IP-55, Class F
Motor Rating	Continuous duty
Impeller Material	Noryl
Shaft Material	Stainless steel
Body Material	Thermoplastic composite
Pre-Filter	Integrated strainer basket
Salt Compatible	Yes
Weight	9.5kg
Overall Length (A)	495mm
Overall Width (B)	265mm
Overall Height (C)	240mm
Motor Housing Height (E)	230mm
Base Width (F)	145mm
Motor Length (G)	250mm
Pump Body Length (H)	210mm
Strainer Height (I)	130mm
Port Diameter (D)	50mm (1.5″)
Warranty	2 years manufacturer warranty

Flow Rate Performance

Head (metres)	Flow Rate (m³/hr)
4m	12.5
6m	9.5
8m	6.3
10m	3.0
11m (max)	–

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

Understanding the running costs of your pool pump helps you budget accurately and make informed decisions about operation schedules.

Power Consumption:

• Rated power: 0.24kW (0.3HP)
• Current UK domestic electricity rate: £0.26 per kWh (October-December 2025 price cap)

Typical Swimming Pool Usage Scenario:

• Operating schedule: 6 hours per day during swimming season
• Swimming season: 150 days per year (approximately May through September)
• Annual operating hours: 6 × 150 = 900 hours

✅ Annual Running Cost:

• Energy consumption: 0.24kW × 900 hours = 216 kWh
• Annual cost: 216 × £0.26 = £56.16

Year-Round Heated Pool Scenario:

• Operating schedule: 4 hours per day year-round
• Annual operating hours: 4 × 365 = 1,460 hours
• Energy consumption: 0.24kW × 1,460 hours = 350.4 kWh
• Annual cost: 350.4 × £0.26 = £91.10

⚡ Energy Efficiency Advantages

Compared to Older 0.5HP Pump (assuming 0.37kW):

• ❌ Old pump annual cost (seasonal use): 0.37kW × 900 hours × £0.26 = £86.58
• ✅ HPS031M annual cost: £56.16
• 💰 Annual saving: £30.42 (35% reduction)
• 📈 5-year saving: £152.10

Variable Speed vs Fixed Speed Benefits: While this is a fixed-speed pump, its efficient 0.24kW motor means running costs remain manageable even during peak usage periods. For pools requiring only 4-6 hours of daily circulation, the HPS031M’s compact motor delivers substantial savings compared to oversized alternatives.

💷 Long-Term Cost Projection

3-Year Total Cost of Ownership (Seasonal Use):

• Purchase cost: [Contact for current pricing]
• Energy costs (3 years): £56.16 × 3 = £168.48
• Estimated maintenance: £20-30 (cleaning strainer basket, occasional gasket replacement)
• Total 3-year operating cost: Approximately £188-198 in energy

Protection Against Rising Energy Costs: With UK energy prices subject to quarterly reviews and long-term upward trends, the HPS031M’s low 0.24kW power consumption provides valuable protection against future price increases. Even with a 20% energy price rise to £0.31/kWh, seasonal running costs would only increase to £67.39 annually – still significantly lower than larger pumps.

🎯 Real World Examples & Applications

🏊 Small to Medium Residential Pools

The HPS031M is ideally suited for domestic pools up to 30,000-40,000 litres. With sufficient flow capacity to turn over pool water in 6-8 hours, it provides effective filtration while maintaining energy efficiency. Perfect for family gardens where swimming is seasonal and operating costs need to remain manageable.

🛁 Hot Tubs & Spa Circulation

For hot tub owners requiring a dedicated circulation pump separate from jet pumps, the HPS031M delivers reliable low-flow circulation for filtration and heating. Its compact dimensions (495mm × 265mm × 240mm) make installation straightforward even in confined plant rooms or decking enclosures.

🌊 Water Features & Small Ponds

Ideal for decorative water features, koi ponds, and ornamental fountains requiring continuous circulation. The self-priming capability makes it particularly suitable for installations where the pump is positioned above water level, such as poolside equipment housings or elevated plant rooms.

🔄 Upgrade from Aging Equipment

When replacing a failing pump from the 1990s or early 2000s, the HPS031M offers immediate energy savings through modern motor efficiency. Many older 1/3HP pumps consumed 0.30-0.35kW under load, making the HPS031M’s 0.24kW rating noticeably more economical, especially across 15-20 years of expected service life.

🏡 New Build & Renovation Projects

For new residential pool installations or comprehensive renovations, the HPS031M represents excellent value as part of a properly sized filtration system. Its IP-55 motor protection and thermoplastic construction ensure compatibility with modern pool equipment rooms and below-deck installations where moisture and humidity are considerations.

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💡 Cost Savings Examples

📍 Scenario 1: Replacing a 20-Year-Old 0.5HP Pump

Background: A homeowner has a 35,000-litre residential pool with an aging 0.5HP pump from 2004 that consumes approximately 0.40kW (accounting for reduced efficiency with age). The pump runs 6 hours daily during a 150-day swimming season.

Current Situation:

• ❌ Old pump power consumption: 0.40kW
• ❌ Annual usage: 0.40kW × 6 hours × 150 days = 360 kWh
• ❌ Annual cost at £0.26/kWh: £93.60

After Upgrading to HPS031M:

• ✅ New pump power consumption: 0.24kW
• ✅ Annual usage: 0.24kW × 6 hours × 150 days = 216 kWh
• ✅ Annual cost at £0.26/kWh: £56.16

💰 Savings Analysis:

• Annual saving: £37.44 (40% reduction)
• 5-year saving: £187.20
• 10-year saving: £374.40
• ⏱ Typical payback period: 18-24 months (depending on pump purchase cost)

Additional Benefits:

• Reduced maintenance from newer components
• 2-year warranty vs. no coverage on aging equipment
• Quieter operation from modern motor design
• Improved reliability reducing risk of mid-season failures

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📍 Scenario 2: Correctly Sizing for Actual Needs

Background: A pool owner was sold an oversized 0.75HP pump (0.55kW) during installation, despite having a modest 28,000-litre pool that only requires 4,000-5,000 litres/hour circulation for adequate filtration.

Current Situation with Oversized Pump:

• ❌ Oversized pump power consumption: 0.55kW
• ❌ Seasonal usage: 0.55kW × 5 hours × 160 days = 440 kWh
• ❌ Annual cost at £0.26/kWh: £114.40
• ❌ Unnecessary wear on filter media from excessive flow rate
• ❌ Increased noise and vibration

After Switching to Properly Sized HPS031M:

• ✅ Right-sized pump power: 0.24kW
• ✅ Optimal usage: 0.24kW × 6 hours × 160 days = 230.4 kWh (running slightly longer with appropriate flow)
• ✅ Annual cost at £0.26/kWh: £59.90

💰 Savings Analysis:

• Annual saving: £54.50 (48% reduction)
• 📈 5-year saving: £272.50
• 📊 10-year saving: £545.00
• Extended filter media life from appropriate flow velocity
• Quieter operation improving poolside environment

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📍 Scenario 3: Energy Price Protection Strategy

Background: With UK energy prices historically volatile and the October-December 2025 cap at £0.26/kWh representing a 44% increase versus winter 2021/22 prices, choosing efficient equipment provides valuable protection against future price movements.

HPS031M Operating Cost at Different Price Points:

Energy Price Scenario	Per kWh Rate	Annual Cost (900 hrs)	vs. 0.37kW Pump
💷 2021 baseline	£0.18/kWh	£38.88	✅ Save £21.06 vs. £59.94
💷 Current (Q4 2025)	£0.26/kWh	£56.16	✅ Save £30.42 vs. £86.58
💷 Potential 2026	£0.30/kWh	£64.80	✅ Save £35.10 vs. £99.90
💷 Higher scenario	£0.35/kWh	£75.60	✅ Save £40.95 vs. £116.55

Key Insight: The HPS031M’s 35% lower power consumption compared to a typical 0.5HP alternative provides proportionally greater savings as energy prices rise. At £0.35/kWh (a plausible scenario given long-term UK energy trends), the annual saving exceeds £40 – enough to offset the cost of a new pump within 5-7 years purely through operational savings.

📥 Downloads & Resources

Installation & Technical Documentation:

📄 Swimflo Pump Installation Manual – Complete installation guide with plumbing, electrical connections, and commissioning procedures (PDF, multi-language) Download: pump_man_swimflohps-279-1.pdf

📄 Swimflo Product Datasheet – Technical specifications, performance curves, dimensional drawings, and model comparison chart (PDF) Download: swimflo-13281-1.pdf

What’s Included:

• Detailed technical specifications and performance data
• Dimensional drawings for installation planning
• Electrical connection diagrams and requirements
• Hydraulic performance curves across operating range
• Maintenance and troubleshooting guidance
• Warranty terms and conditions
• Multi-language support (English, French, Spanish, Italian, German, Portuguese, Dutch)

🏆 Why Choose the Certikin Swimflo HPS031M?

✅ Proven Reliability – Certikin’s Swimflo range has established a strong reputation across the UK and European markets for dependable domestic pool filtration, with thousands of installations operating trouble-free for 10+ years

✅ Purpose-Built for Domestic Use – Unlike commercial pumps adapted for home use or undersized options, the HPS031M is specifically engineered for residential pools, balancing performance with energy efficiency and reasonable operating costs

✅ Genuine OEM Components – Factory-original parts ensure proper fit, performance, and longevity; aftermarket alternatives often compromise on material quality and precise manufacturing tolerances

✅ Future-Proof Technology – Salt chlorination compatibility means your pump investment remains relevant as pool sanitisation technology evolves, protecting against premature obsolescence

✅ Energy Cost Protection – With UK electricity prices subject to quarterly reviews and long-term upward pressure, the HPS031M’s efficient 0.24kW motor provides valuable protection against operating cost increases

✅ Comprehensive Warranty Coverage – 2-year manufacturer warranty demonstrates Certikin’s confidence in build quality and provides financial protection during the critical early ownership period

✅ Straightforward Maintenance – Integrated pre-filter with easy-access strainer basket minimises maintenance time and complexity; no specialist tools required for routine cleaning

✅ Compact Installation Footprint – At 495mm × 265mm × 240mm, the HPS031M fits comfortably in limited equipment spaces, including below-deck installations and compact plant rooms

🤝 Why Buy From Parts4Tubs?

✅ Authorised Certikin Dealer – Genuine factory-direct products with full manufacturer warranty support and traceability

✅ Expert Technical Advice – Our team understands residential pool equipment and can help ensure you’re selecting the right pump for your specific application

✅ Competitive Pricing – Direct relationships with manufacturers mean better value without compromising on quality or service

✅ Fast UK Delivery – Quick dispatch from UK stock means less downtime when replacing failed equipment or completing new installations

✅ Comprehensive Support – From pre-purchase advice through installation guidance to warranty claims, we’re here to help throughout your pump’s service life

✅ Extensive Parts Inventory – When maintenance or repairs are eventually needed, we stock genuine Certikin replacement components including impellers, seals, and strainer baskets

✨ Summary

The Certikin Swimflo HPS031M 0.3HP pump represents an intelligent choice for residential pool owners seeking reliable, efficient filtration without the complexity or expense of oversized commercial equipment. With its proven thermoplastic construction, self-priming operation, and energy-efficient 0.24kW motor, this pump delivers consistent performance while keeping annual operating costs below £60 for typical seasonal use.

Whether you’re replacing aging equipment, correctly sizing a new installation, or upgrading to reduce energy consumption, the HPS031M offers excellent value through a combination of modest purchase cost, low running expenses, and long-term reliability backed by Certikin’s comprehensive 2-year warranty.

Make the smart choice for your pool – invest in proven performance with the Swimflo HPS031M.