💧 Hayward K-Flo Pool Pump – 0.5HP Single Phase (7.5m³/hr) | SPK12605XY1

Quiet, Efficient Pool Circulation with Tool-Free Maintenance and Salt Water Compatibility

📋 Product Overview

The Hayward K-Flo SPK12605XY1 represents the latest evolution in residential pool pump technology, delivering exceptional performance in a compact, user-friendly package. Engineered by Hayward, a global leader in pool equipment, this 0.5HP single-phase pump provides reliable water circulation for pools up to 45m³ whilst maintaining impressively low noise levels and energy consumption.

What sets the K-Flo apart is its innovative Twist-Lock cover design, allowing complete strainer basket access without any tools—a genuine time-saver for regular maintenance. The pump features premium Noryl® impeller and diffuser components, renowned for their exceptional durability and resistance to chemical degradation, making this unit ideal for salt water chlorination systems. With included union fittings and direct replacement compatibility for older KS pumps, installation is straightforward whether you’re upgrading an existing system or installing fresh.

Backed by Hayward’s comprehensive 3-year warranty, the K-Flo delivers peace of mind alongside outstanding performance.

⭐ Key Features

✅ Tool-Free Twist-Lock Cover – Rapid access to the strainer basket without any tools required, making routine maintenance quick and hassle-free

✅ Noryl® Impeller & Diffuser – Premium hard-wearing components manufactured from Noryl® with glass fibre reinforcement, offering superior corrosion resistance and longevity

✅ Full Salt Water Compatibility – AISI 316 stainless steel mechanical seal assembly designed specifically for chlorinated and salt water environments

✅ Direct KS Pump Replacement – Engineered as a drop-in replacement for existing KS pump installations, simplifying upgrade projects

✅ Complete Union Kit Included – 50mm unions supplied as standard, with 50mm to 1.5″ conversion shim provided for versatile connection options

✅ See-Through Strainer Cover – SAN® transparent lid allows visual inspection of the strainer basket without opening the pump

✅ Double Drain System – Easy-opening drain plugs (no tools required) for complete winterisation and maintenance access

✅ Quiet Operation – Class F motor with IP55 protection rating delivers smooth, low-noise performance suitable for residential settings

✅ Energy-Efficient Design – 610W input power with 385W output delivers excellent efficiency for reduced running costs

✅ Corrosion-Proof Construction – PP+GF (polypropylene with glass fibre) housing resists chemical attack and UV degradation

🔧 Technical Specifications

Specification	Detail
Model Number	SPK12605XY1
Power Rating	0.5 HP (Horsepower)
Input Power (P1)	610W
Output Power (P2)	385W
Flow Rate	7.5 m³/hr (at 10m head)
Amperage	3.2A
Voltage	230V Single Phase
Frequency	50 Hz
Connection Size	50mm
Motor Class	F
Protection Rating	IP55
Maximum Water Temperature	35°C
Side A Length	590mm
Overall Dimensions	302mm × 244mm × 311.7mm
Weight	12.5 kg
Housing Material	PP+GF (Polypropylene + Glass Fibre)
Impeller/Diffuser Material	Noryl®+GF
Strainer Lid Material	SAN®
Mechanical Seal	AISI 316 Stainless Steel
Warranty	3 Years (excludes capacitors and mechanical seals)
Recommended Pool Size	Up to 45m³ (based on 6-hour turnover)

💰 Usage Costs & Running Expenses

Understanding your ongoing running costs is essential when selecting a pool pump. The K-Flo’s efficient 610W motor delivers significant savings compared to older or less efficient alternatives.

📊 Annual Running Cost Calculation

Power consumption: 0.61 kW (610W) Current UK electricity rate: £0.2635 per kWh (Ofgem Price Cap, Q4 2025)

🏊 Scenario 1: Seasonal Residential Pool (6 months operation)

• Daily runtime: 8 hours
• Season length: 180 days (April–September)
• Annual operating hours: 1,440 hours

Calculation: 0.61 kW × 1,440 hours × £0.2635 = £231.60 per year

That’s approximately £1.29 per day during the swimming season.

☀ Scenario 2: Extended Season Pool (8 months with heating)

• Daily runtime: 8 hours
• Season length: 240 days (March–October)
• Annual operating hours: 1,920 hours

Calculation: 0.61 kW × 1,920 hours × £0.2635 = £308.80 per year

♨ Scenario 3: Indoor/Heated Pool (Year-round operation)

• Daily runtime: 10 hours
• Operating days: 365 days
• Annual operating hours: 3,650 hours

Calculation: 0.61 kW × 3,650 hours × £0.2635 = £586.80 per year

🎯 Real World Examples & Applications

🏊‍♂ Residential Swimming Pools

The K-Flo 0.5HP is perfectly sized for domestic pools up to 45m³, providing a complete water turnover every 6 hours. Ideal for typical UK garden pools measuring 8m × 4m × 1.4m depth (approximately 45,000 litres). The quiet operation makes it suitable for installation near patios and outdoor living spaces.

🛁 Hot Tubs & Swim Spas (Circulation Duty)

When used as a dedicated circulation pump for larger swim spas or as a secondary circulation pump in commercial spa applications, the K-Flo’s salt water compatibility and corrosion-resistant construction ensure reliable long-term performance in chemically demanding environments.

🌊 Water Features & Ponds

The moderate flow rate of 7.5m³/hr makes this pump suitable for driving medium-sized water features, cascades, and ornamental pond filtration systems. The transparent strainer cover is particularly useful for monitoring debris accumulation in outdoor applications.

🔄 Upgrade from Older KS Pumps

The K-Flo is specifically designed as a direct replacement for legacy KS pump installations. The matching footprint, connection sizes, and mounting configuration allow straightforward upgrades without replumbing. Older pumps operating at 750-900W can be replaced, delivering immediate energy savings.

🏠 Above-Ground Pool Systems

At 12.5kg and with compact dimensions, the K-Flo is manageable for above-ground pool installations where space and weight are considerations. The IP55 rating provides adequate weather protection for semi-exposed locations.

💡 Cost Savings Examples

Upgrading an older, less efficient pump to the Hayward K-Flo can deliver substantial annual savings. Here’s how the numbers work:

📍 Scenario: Replacing an Older 0.75HP Single-Speed Pump

Many older 0.75HP pumps consume 800-900W whilst delivering similar flow rates to modern 0.5HP units. Let’s compare:

Your current pump (estimated):

• ❌ Power consumption: 0.85 kW
• ❌ Annual runtime: 1,440 hours (seasonal use)
• ❌ Annual cost: 0.85 × 1,440 × £0.2635 = £322.60

Hayward K-Flo 0.5HP:

• ✅ Power consumption: 0.61 kW
• ✅ Annual runtime: 1,440 hours
• ✅ Annual cost: 0.61 × 1,440 × £0.2635 = £231.60

💰 Annual Saving: £91.00

⏱ Payback period: If the K-Flo costs £350-400 to purchase, you’ll recover the investment in approximately 4-4.5 years through energy savings alone—whilst benefiting from quieter operation and the 3-year warranty from day one.

📍 Scenario: Comparing with Higher-Powered Alternatives

Some pool owners are tempted to over-specify pump power. Here’s why right-sizing matters:

1HP Pump (1,090W) running 8 hours daily for 180 days:

• ❌ Annual cost: 1.09 × 1,440 × £0.2635 = £413.70

K-Flo 0.5HP (610W) same runtime:

• ✅ Annual cost: 0.61 × 1,440 × £0.2635 = £231.60

💵 Annual Saving: £182.10 by choosing the correctly sized pump

📈 5-Year Savings: £910.50

📊 Long-Term Value Comparison

Timeframe	Old 0.85kW Pump	K-Flo 0.61kW	Cumulative Saving
Year 1	£322.60	£231.60	💰 £91.00
Year 3	£967.80	£694.80	💰 £273.00
Year 5	£1,613.00	£1,158.00	💰 £455.00
Year 10	£3,226.00	£2,316.00	💷 £910.00

Based on seasonal operation (1,440 hours/year) at current UK electricity rates

📥 Downloads & Resources

📄 K-Flo Product Brochure – Complete product specifications, performance curves, and dimensional drawings for the entire K-Flo pump range (PDF)

📄 K-Flo Spare Parts List – Comprehensive parts breakdown with reference numbers for all K-Flo components including impellers, seals, gaskets, and motor parts (PDF)

🏆 Why Choose the Hayward K-Flo?

✅ Trusted Brand Heritage – Hayward is a globally recognised leader in pool and spa equipment, with decades of engineering expertise behind every product

✅ Genuine Long-Term Value – 3-year manufacturer warranty demonstrates confidence in build quality and component durability

✅ Lowest Total Cost of Ownership – Efficient 610W motor reduces electricity bills year after year whilst Noryl® components minimise replacement part costs

✅ Hassle-Free Maintenance – Tool-free strainer access and transparent cover mean regular cleaning takes minutes, not hours

✅ Future-Proof Installation – Salt water compatible construction supports upgrading to modern salt chlorination systems without pump replacement

✅ Easy Retrofit – Direct replacement for KS pumps with included union kit and conversion shims eliminates complex replumbing

🛒 Why Buy From Parts4tubs?

✅ Specialist Knowledge – Our team understands pool and spa equipment inside out, providing expert guidance on product selection and compatibility

✅ Competitive Pricing – Direct relationships with manufacturers mean genuine value without compromising on quality or warranty coverage

✅ Fast UK Delivery – Stock held in the UK for rapid dispatch, getting your pool back in action quickly

✅ Full Manufacturer Warranty – All products supplied with complete manufacturer warranty support and documentation

✅ After-Sales Support – Technical assistance available for installation queries, spare parts, and ongoing maintenance advice

✅ Genuine Parts Only – We supply only authentic Hayward products and components, never grey imports or unbranded alternatives

✨ Summary

The Hayward K-Flo SPK12605XY1 delivers the perfect balance of performance, efficiency, and convenience for residential pool owners. With its energy-efficient 610W motor costing approximately £232 annually to run (seasonal use), tool-free maintenance design, and full salt water compatibility, this pump represents outstanding value for pools up to 45m³. Backed by Hayward’s 3-year warranty and designed as a direct replacement for older KS installations, the K-Flo makes upgrading simple whilst delivering genuine long-term savings. For reliable, quiet pool circulation from a brand you can trust, the K-Flo is the smart choice.