🔵 Pentair FreeFlo Pump 1.5HP 1.1kW Single Phase – Quiet, Powerful Pool Circulation

Extra power, whisper-quiet performance, and built to last — the perfect upgrade for small to medium pools.

The Pentair FreeFlo 1.5HP swimming pool pump combines robust engineering with smart design to deliver reliable, efficient circulation for above-ground and small in-ground pools. Whether you’re replacing an aging Swimmey pump or upgrading your pool’s filtration system, this pump offers exceptional value with its quiet operation, durable construction, and hassle-free installation.

Key advantages:

• Whisper-quiet operation thanks to innovative mono-block design that minimizes vibration
• Heavy-duty IP55-rated motor protects against dust and water jets for long-lasting performance
• Drop-in replacement for Swimmey pumps – no plumbing modifications required
• Crystal-clear water through superior hydraulic engineering and large debris basket
• Built to withstand demanding conditions with thick-walled reinforced composite housing
• Flexible installation with 90° rotatable discharge and secure 50mm swivel unions

🎯 Top Features & Benefits

💨 Ultra-Quiet Mono-Block Design

Enjoy your pool without the noise. The integrated mono-block construction reduces vibration dramatically, making this one of the quietest pumps in its class. Perfect for residential installations where noise matters.

🔄 Direct Swimmey Pump Replacement

Seamless upgrade path! The FreeFlo is specifically engineered as a drop-in replacement for Swimmey pumps, saving you time, money, and hassle during installation. Same footprint, better performance.

👀 Transparent Inspection Lid

The see-through Cam and Ramp™ lid lets you check your strainer basket at a glance. No need to open the pump just to see if cleaning is needed – visual inspection takes seconds.

🗑️ Extra-Large Self-Aligning Basket

The oversized HDPE strainer basket captures more debris, reducing cleaning frequency and improving filtration efficiency. Self-aligning design ensures perfect seating every time.

🔧 50mm Swivel Union Fittings

Secure, leak-free connections with swivel unions that simplify installation and future maintenance. The flexible positioning accommodates various plumbing configurations.

🔄 90° Rotatable Discharge

Adapt to any pool layout with ease. The discharge port rotates 90 degrees, providing installation flexibility without additional elbows or fittings.

💧 Extra Drain Plug for Easy Winterization

Thoughtful design includes an additional drain plug for complete water evacuation, simplifying winterization and preventing freeze damage.

🛡️ IP55 Heavy-Duty Motor Protection

The thermally-protected, totally enclosed fan-cooled (TEFC) motor is rated IP55, offering excellent protection against dust ingress and water jets for reliable operation in pool environments.

📊 Complete Technical Specifications

Specification	Detail
Brand	Pentair
Model	FreeFlo FFL-151
Power Rating	1.1 kW (1,100 Watts)
Horsepower	1.5 HP
Voltage	220-240V
Phase	Single Phase (1~)
Frequency	50Hz
Motor Type	Thermally Protected TEFC
Motor Protection	IP55 (dust & water jet protected)
Cooling Type	Air-cooled
Connection Size	50mm ID (Inner Diameter) Swivel Unions
Discharge	90° Rotatable
Body Material	Thick-walled reinforced composite
Basket Material	Heavy-duty HDPE (High-Density Polyethylene)
Lid Design	Single-piece transparent Cam and Ramp™
Pump Type	Self-priming with pre-filter
Design	Mono-block (integrated construction)
Noise Level	Low (reduced vibration design)
Warranty	3-year limited warranty
Power Cable Length	1.5m (5 feet)
Overall Dimensions	645mm (L) × 242mm (W) × 282.5mm (H)
Weight	Approx. 12-15kg (depending on configuration)

📈 Performance Data & Pump Curve

The FreeFlo 1.5HP delivers impressive flow rates while maintaining energy efficiency:

| Maximum Flow Rate | Up to 20 m³/hr (approximately 4,400 gallons/hour) | | Maximum Head | Up to 18 meters (59 feet) | | Operating Range | Optimized for 5-15 m³/hr (1,100-3,300 gph) at 5-12m head |

Performance characteristics:

• Provides strong circulation for pools up to 60,000 litres (13,200 gallons)
• Efficient operation across a wide flow range
• Self-priming capability up to 1.8m (6 feet) suction lift
• Typical priming time: 3-5 minutes under normal conditions

Note: Actual performance depends on your specific installation, plumbing configuration, and total dynamic head.

🏊 Ideal Applications & Pool Sizing

The Pentair FreeFlo 1.5HP is perfectly suited for:

✅ Above-Ground Pools

• Small to large above-ground pools (up to 60,000 litres)
• Frame pools and inflatable pools requiring robust filtration
• Seasonal pools requiring reliable circulation

✅ Small to Medium In-Ground Pools

• Residential in-ground pools up to 50,000 litres
• Plunge pools and compact swimming pools
• Residential pools with standard filtration requirements

✅ Spas & Hot Tubs

• Commercial and residential spa circulation
• Hot tub filtration systems
• Therapy pools requiring continuous circulation

✅ Water Features

• Decorative ponds with filtration needs
• Fountain and waterfall circulation
• Water feature projects requiring 1.5HP capacity

✅ Heating Systems

• Pool heating system circulation
• Compatible with heat pumps and solar heating
• Ideal for pools using gas or electric heaters

🔄 Pool Turnover & Circulation Guide

How often should your pool water be filtered?

Most pools should circulate their entire volume through the filter 1-2 times per day. Here’s what that means for your pool:

Pool Volume	Turnover Time at 12 m³/hr	Daily Runtime for 1.5 Turnovers
20,000 litres (4,400 gal)	1.7 hours	2.5 hours
30,000 litres (6,600 gal)	2.5 hours	4 hours
40,000 litres (8,800 gal)	3.3 hours	5 hours
50,000 litres (11,000 gal)	4.2 hours	6.5 hours
60,000 litres (13,200 gal)	5 hours	7.5 hours

💡 Practical Example: If you have a 40,000-litre pool, running the FreeFlo 1.5HP for 5-6 hours daily will circulate all your water 1.5 times, maintaining clean, clear water.

⚠️ These are estimates based on average flow rates. Your actual circulation time may vary depending on plumbing friction loss, filter type, and system configuration.

💰 Running Cost Estimates

How much does it cost to run the FreeFlo 1.5HP pump?

Based on 1.1kW power consumption:

Daily Runtime	Monthly kWh	Cost @ £0.24/kWh	Cost @ £0.30/kWh
4 hours/day	132 kWh	£31.68/month	£39.60/month
6 hours/day	198 kWh	£47.52/month	£59.40/month
8 hours/day	264 kWh	£63.36/month	£79.20/month
12 hours/day	396 kWh	£95.04/month	£118.80/month

💡 Energy-Saving Tips:

• Run during off-peak hours if you have time-of-use electricity rates
• Use a timer to optimize runtime (6-8 hours is sufficient for most pools)
• Keep your filter and basket clean to maintain efficiency
• Ensure proper water chemistry to reduce pump strain

Electricity costs vary by region and tariff. Figures are estimates for planning purposes.

🔧 Installation Requirements & Guidelines

Electrical Requirements

⚡ Power Supply:

• 220-240V single-phase AC supply
• GFCI/RCD protection mandatory (30mA max residual current)
• Dedicated circuit recommended
• 1.5m (5 feet) power cord included

⚠️ CRITICAL SAFETY: This pump MUST be installed by a qualified electrician in accordance with local electrical codes. All pool equipment requires GFCI/RCD protection.

Plumbing & Positioning

📏 Location Requirements:

• Install minimum 1.5m (5 feet) from pool edge
• Place on flat, solid surface elevated above potential flood level
• Ensure adequate ventilation around motor
• Protect from direct weather exposure (shelter recommended)
• Provide easy access for maintenance

🔧 Suction Line Best Practices:

• Use shortest, most direct route from pool to pump
• Maintain continuous upward slope to pump (no dips or valleys)
• Suction line diameter should match or exceed 50mm inlet
• Ensure all connections are airtight (air leaks prevent priming)
• Install gate valves for isolation during maintenance

💧 Discharge Line:

• Support pipes independently near pump connections
• Minimize elbow fittings to reduce friction loss
• Consider installing a non-return valve after pump (prevents backflow)
• Ensure discharge line is adequately sized

Foundation & Mounting

The pump should be mounted on:

• Level concrete pad or solid paving
• Vibration-dampening pad (optional but recommended)
• Surface that allows drainage (prevent water pooling around motor)

Clearance requirements:

• Minimum 300mm (12″) clearance on all sides for ventilation
• Adequate overhead clearance for lid removal and basket cleaning
• Keep chemicals, fertilizers, and corrosive substances away from motor

🛠️ Maintenance & Care Guide

Weekly Maintenance

✅ Visual Inspection (2 minutes):

• Check transparent lid to inspect basket for debris
• Look for signs of leaks around unions and lid
• Verify normal operating pressure on filter gauge
• Listen for unusual noises or vibrations

✅ Basket Cleaning (5-10 minutes when needed):

1. Turn off pump and relieve system pressure
2. Rotate lid counter-clockwise to remove
3. Lift out basket and empty debris
4. Rinse basket thoroughly
5. Check basket for cracks (replace if damaged)
6. Refill strainer pot with water
7. Check O-ring condition and lubricate with silicone grease
8. Reinstall lid, turning clockwise until handle locks (hand-tight only)

🚨 Important: A dirty basket reduces efficiency and strains the motor. Clean weekly during heavy use periods (summer, high debris).

Seasonal Maintenance

Spring Startup:

• Inspect all O-rings and replace if worn or damaged
• Check for any winter damage to pump body or fittings
• Verify all drain plugs are reinstalled and tight
• Test run pump and check for leaks
• Clean basket and refill strainer pot before first use

Winter Shutdown (Freezing Climates):

1. Turn off power at circuit breaker
2. Remove both thumb-twist drain plugs from pump housing
3. Remove drain plug from strainer pot
4. Remove all O-rings from drain plugs
5. Store drain plugs and O-rings in pump basket
6. Cover motor to protect from severe weather (DO NOT wrap in plastic)
7. Post “Winterized” notice on pump

⚠️ FREEZE DAMAGE IS NOT COVERED BY WARRANTY – Proper winterization is essential in climates where temperatures drop below 2°C (35°F).

Monthly Maintenance

• Check power cord for damage or wear
• Verify GFCI/RCD is functioning (test button)
• Inspect pump for signs of corrosion or UV damage
• Check union connections for tightness
• Monitor filter pressure (clean filter when pressure rises 8-10 PSI above clean pressure)

Annual Professional Service

Consider having a pool professional inspect:

• Motor bearings and internal components
• Impeller for debris or wear
• Seal condition and functionality
• Electrical connections and grounding
• Overall system performance and efficiency

❓ Frequently Asked Questions

General Operation

Q: Is this pump suitable for my above-ground pool? A: Yes! The FreeFlo 1.5HP is specifically designed for above-ground and small in-ground pools up to approximately 60,000 litres (13,200 gallons). It’s an excellent choice for most residential above-ground pools.

Q: How long does it take the pump to prime? A: Typically 3-5 minutes under normal conditions. Priming time depends on suction lift height (maximum 1.8m/6ft) and distance from pool. If the pump doesn’t prime within 5 minutes, check for air leaks in suction plumbing or low water level.

Q: How often should I run my pool pump? A: Most pools need 6-8 hours of circulation daily, though this varies based on pool usage, weather, and water chemistry. The pump should circulate your entire pool volume 1-2 times per day. Use the turnover guide above to calculate your ideal runtime.

Q: Can I use this pump with a saltwater chlorinator? A: Yes, the FreeFlo is compatible with saltwater pool systems. The reinforced composite housing and IP55-rated motor provide good corrosion resistance. Ensure all other system components are rated for saltwater use.

Q: Is this pump self-priming? A: Yes, the FreeFlo features self-priming capability with a pre-filter basket. It can lift water up to 1.8 meters (6 feet) vertically. Always fill the strainer pot with water before starting for optimal priming.

Installation & Compatibility

Q: Will this pump replace my Swimmey pump? A: Absolutely! The FreeFlo is engineered as a direct drop-in replacement for Swimmey pump series. The mounting footprint, connection sizes, and plumbing interfaces match, making it a hassle-free upgrade.

Q: Do I need an electrician to install this pump? A: Yes, electrical installation MUST be performed by a qualified electrician according to local codes. The pump requires proper GFCI/RCD protection and must be correctly grounded. DIY electrical work on pool equipment is dangerous and may void warranties.

Q: Can I install this pump below the water line? A: While the pump is self-priming, it’s typically installed above the water line for accessibility and to minimize flooding risk if seals fail. For below-water-line installations, ensure proper gate valves are fitted for isolation.

Q: What size pipes do I need? A: The FreeFlo has 50mm (2-inch) internal diameter connections. Your suction and discharge plumbing should be at least 50mm (preferably larger) to minimize friction loss. Never reduce pipe size below the pump’s connection size.

Performance & Efficiency

Q: How much electricity does this pump use? A: The FreeFlo 1.5HP draws 1.1kW (1,100 watts) when running. At typical UK electricity rates (£0.24-0.30/kWh), running it 6 hours daily costs approximately £47-59 per month. See the running cost table above for detailed estimates.

Q: Why is my pump louder than expected? A: The FreeFlo is designed for quiet operation. If yours is loud, check for: cavitation due to restricted suction, air leaks in plumbing, loose mounting, debris in the impeller, or improper installation. The mono-block design should run very quietly when installed correctly.

Q: Can I use this pump with my solar pool heater? A: Yes! The FreeFlo provides excellent circulation for solar heating systems. The 1.5HP capacity is ideal for moving water through solar panels efficiently. Ensure your system is designed for the pump’s flow rate.

Q: What’s the maximum pool size for this pump? A: The FreeFlo 1.5HP handles pools up to approximately 60,000 litres (13,200 gallons) efficiently. For larger pools, consider running it longer hours or upgrading to a higher-capacity pump.

Maintenance & Troubleshooting

Q: How often do I need to clean the basket? A: It depends on debris levels, but visually check weekly and clean when you see debris accumulation. During high-use periods (summer) or when surrounded by trees, you may need to clean 2-3 times weekly. The transparent lid makes checking easy.

Q: My pump won’t prime – what should I check? A: Common priming issues include: (1) Insufficient water in strainer pot – always fill before starting, (2) Air leaks in suction plumbing or unions, (3) Clogged basket or impeller, (4) Suction lift exceeds 1.8m, (5) Suction valve closed or obstructed, (6) Water level too low at skimmer. Check the troubleshooting section in the manual for detailed guidance.

Q: When should I replace the O-rings? A: Inspect O-rings during every basket cleaning. Replace when you notice: cracking, flattening, loss of elasticity, or if the pump develops air leaks. Keep spare O-rings on hand – they’re inexpensive and critical for proper operation. Always lubricate with silicone-based grease.

Q: Is the motor repairable if it fails? A: The motor is sealed (TEFC design), so internal repairs typically aren’t cost-effective. However, Pentair offers excellent warranty support. If your motor fails within the 3-year warranty period, contact Pentair or your supplier for warranty service.

Technical Specifications

Q: What does IP55 motor protection mean? A: IP55 is an international protection rating: the first “5” means dust-protected (limited ingress, no harmful deposits), the second “5” means protected against water jets from any direction. This makes the motor highly suitable for pool environments where splashing and dust exposure occur.

Q: What’s the difference between this and the 1HP FreeFlo? A: The 1.5HP (1.1kW) model provides approximately 50% more power than the 1HP (0.75kW) version. This translates to higher flow rates, better performance with larger filters, ability to handle more plumbing friction loss, and suitability for larger pools. Choose 1.5HP for pools over 35,000 litres or installations with long pipe runs.

Q: Can I control this pump with a timer? A: Yes, and we highly recommend using a timer! Install a weatherproof timer on your dedicated pump circuit to automate daily operation. This ensures consistent circulation, prevents forgetting to run the pump, and can reduce costs by running during off-peak electricity hours.

Q: Does this pump come with a warranty? A: Yes, Pentair provides a 3-year limited warranty covering manufacturing defects. Always register your pump after purchase and retain proof of professional installation. Note that improper installation, lack of maintenance, freeze damage, and operating outside specifications void the warranty.

📥 Downloads & Documentation

📄 Complete Installation & Operation Manual (opens in new tab)

Download FreeFlo Pump Manual (opens in new tab)

Comprehensive 32-page guide covering:

• Detailed safety instructions and warnings
• Step-by-step installation procedures
• Electrical wiring diagrams and requirements
• Start-up and operation guidelines
• Maintenance schedules and procedures
• Complete troubleshooting guide
• Winterization instructions
• Available in English, German, Dutch, French, Spanish, and Italian

📄 Technical Datasheet & Specifications (opens in new tab)

Download FreeFlo Pump Datasheet (opens in new tab)

Single-page quick reference including:

• Full FreeFlo model range specifications
• Performance curves and hydraulic data
• Dimensional drawings with measurements
• Model comparison chart (0.25kW to 1.1kW)
• Connection specifications
• Weight and size information

💡 Installation Tip: Download both documents before installation and keep them accessible for reference during setup and future maintenance.

⚠️ Important Safety Information

Before installing or operating this pump, please note:

Suction Entrapment Hazard

This pump creates powerful suction that can cause serious injury or death. Essential safety requirements:

• ⚠️ Pools and spas MUST have minimum two drains per pump
• ⚠️ All drains MUST have properly secured anti-entrapment covers
• ⚠️ Drain covers must be spaced minimum 1 meter apart
• ⚠️ NEVER operate pool if drain covers are missing, cracked, loose, or damaged
• ⚠️ Inspect drain covers regularly and replace when worn
• ⚠️ Keep hair, body, and limbs away from all drains and suction outlets
• ⚠️ Install clearly marked emergency shut-off switch in accessible location

Electrical Safety

• ⚡ Installation MUST be performed by qualified electrician only
• ⚡ GFCI/RCD protection (30mA max) is mandatory
• ⚡ Pump must be properly grounded
• ⚡ Always disconnect power before servicing
• ⚡ Never operate with damaged power cord
• ⚡ Ensure voltage matches pump specifications (220-240V)

Pressure Hazards

• 🚨 Stand clear during start-up – system operates under high pressure
• 🚨 Never open pump or filter while system is pressurized
• 🚨 Always relieve all system pressure before opening pump
• 🚨 Never operate pump if it has run dry or overheated
• 🚨 Ensure lid O-ring is properly seated before operation

Installation & Operation

• 📋 Read entire manual before installation or operation
• 📋 Only use pump to circulate swimming pool water
• 📋 Not suitable for use by persons with reduced physical or mental capabilities without supervision
• 📋 Children must be supervised to ensure they don’t play with equipment
• 📋 Failure to follow instructions voids all warranties

🔴 CRITICAL: Improper installation or operation can result in serious injury or death. When in doubt, consult a professional.

🌟 Why Choose Pentair?

Pentair is a global leader in water treatment and sustainable solutions with over 50 years of pool equipment innovation. When you choose a Pentair FreeFlo pump, you’re investing in:

✅ Proven Reliability – Decades of engineering excellence and millions of installations worldwide

✅ Quality Materials – Heavy-duty construction built to withstand years of continuous operation

✅ Professional Support – Comprehensive warranty coverage and responsive customer service

✅ Innovation – Industry-leading features like Cam and Ramp™ lids and mono-block designs

✅ Efficiency – Optimized hydraulics reduce energy consumption while maximizing performance

✅ Compatibility – Designed to work seamlessly with Pentair filters, heaters, and automation systems

🛒 What’s Included

Your Pentair FreeFlo 1.5HP pump package contains:

✅ FreeFlo pump with integrated motor and pre-filter
✅ Transparent strainer basket lid with O-ring
✅ Large HDPE strainer basket
✅ 50mm swivel union fittings (inlet and outlet)
✅ Drain plugs with O-rings
✅ 1.5m (5 feet) power cable
✅ Installation and operation manual

Not included (may be required):

• Mounting pad or base
• Plumbing connections (pipes, elbows, unions)
• Electrical wiring and GFCI protection
• Timer (optional but recommended)
• Chemical feeder or additional filtration equipment

💡 Installation & Professional Services

Need help with installation?

While experienced DIYers can handle the plumbing aspects, electrical installation MUST be performed by a qualified electrician to ensure safety and warranty compliance.

Professional installation ensures:

• Correct electrical connections and GFCI protection
• Proper grounding and safety compliance
• Optimal pump positioning and plumbing layout
• Compliance with local building and electrical codes
• Warranty validity

Contact a local pool professional or electrician for:

• Complete pump installation service
• Electrical connection and safety certification
• System commissioning and testing
• Plumbing integration with existing equipment
• Seasonal opening and closing services

🔍 Quick Summary: Is This Pump Right for You?

✅ Choose the FreeFlo 1.5HP if you have:

• Above-ground pool up to 60,000 litres
• Small in-ground pool up to 50,000 litres
• Existing Swimmey pump needing replacement
• Need for quiet, reliable circulation
• Standard residential filtration requirements

❌ Consider alternatives if you have:

• Large in-ground pools over 60,000 litres (need higher HP)
• Very small pools under 15,000 litres (0.75HP may suffice)
• Variable speed requirements (consider VFD pumps)
• Extremely long pipe runs (may need higher HP)

🎯 Bottom Line: The Pentair FreeFlo 1.5HP offers exceptional value for money with professional-grade construction, whisper-quiet operation, and hassle-free Swimmey replacement. Perfect for residential pool owners who want reliable, efficient circulation without the noise and headaches of cheaper alternatives.

🚀 Ready to Upgrade Your Pool Circulation?

Order your Pentair FreeFlo 1.5HP pump today and enjoy:

✅ 3-year manufacturer’s warranty
✅ Expert customer support
✅ Genuine Pentair quality
✅ Fast dispatch

Questions before ordering? Contact our pool equipment specialists for personalized advice on the right pump for your pool.