Aquamite AQM031 💧 0.33HP (0.53kW) Single Phase Pump | 1.5″/50mm Suction & Delivery – Compact Pool & Water Feature Circulation

💧 Your reliable, energy-efficient solution for domestic pools, ponds, and water features with proven durability and exceptional value

📋 Product Overview

The Aquamite AQM031 is a compact, professionally-engineered single-phase circulation pump specifically designed for domestic swimming pools, small recirculation systems, ponds, and decorative water features. Manufactured using advanced engineering plastic moulding technology, this 0.33HP (0.53kW) pump delivers reliable performance with flow rates up to 11.3 m³/hr, making it an ideal choice for homeowners seeking dependable water circulation without excessive power consumption.

Built with commercial-grade components including a high-grade 316 stainless steel mechanical seal and hydraulically optimised impeller design, the Aquamite AQM031 provides protection against corrosion from chlorinated water, ozone, iodine, bromine, and salt water chlorination systems. The pump’s single-piece construction with integrated strainer pot and volute ensures structural integrity and long-term reliability. With 50mm quick-connect unions for straightforward installation and a generous 0.9-litre strainer basket, this pump minimises maintenance requirements while maximising operational efficiency.

The AQM031 represents exceptional value for residential applications, combining professional-grade construction with accessible running costs that won’t inflate your energy bills.

⭐ Key Features

✅ Powerful Yet Economical Performance – Delivers 11.3 m³/hr flow rate with only 0.53kW power consumption, providing excellent circulation efficiency for pools up to approximately 30-40m³ whilst keeping electricity costs remarkably low compared to oversized alternatives

✅ Premium 316 Stainless Steel Mechanical Seal – High-grade carbon/graphite seal with 316 stainless steel spring assembly provides superior corrosion resistance against chlorine, salt water, ozone, bromine, and Baquacil, significantly extending service life in demanding chemical environments

✅ Patented Secondary Seal Protection – Unique drainage system captures any potential leaks from worn mechanical seals and safely diverts water away from the motor, protecting your investment and preventing costly motor damage from water ingress

✅ Large 0.9-Litre Strainer Basket – Generously sized debris collection basket reduces cleaning frequency and protects the impeller from damage, with clear lid design allowing quick visual inspection without removing the cover

✅ Quick-Connect Installation System – Factory-fitted 50mm (1.5″) barrel unions enable tool-free installation and removal for maintenance, significantly reducing setup time and making seasonal winterisation straightforward

✅ Thermally Protected Motor – Built-in thermal overload protection automatically shuts down the pump if excessive temperature is detected, safeguarding against damage from dry running, blockages, or electrical faults

✅ Hydraulically Optimised Design – Engineered impeller and diffuser configuration maximises flow whilst minimising turbulence and energy waste, resulting in quieter operation and reduced running costs compared to less efficient pump designs

✅ Robust Single-Piece Construction – State-of-the-art glass-filled thermoplastic body with integrated strainer pot and volute provides exceptional structural strength, eliminating weak points common in multi-piece assemblies

✅ Fan-Cooled Motor with 303 Stainless Steel Shaft – Efficient air cooling extends motor life whilst the corrosion-resistant shaft prevents seizure and ensures smooth, reliable operation even in humid outdoor environments

✅ Versatile Application Range – Perfect for domestic swimming pools, hot tub circulation, pond filtration systems, decorative water features, and small commercial applications requiring reliable, continuous water movement

🔧 Technical Specifications

Specification	Detail
Model	AQM031 Aquamite
Power Rating (Nominal)	0.33 HP
Input Power Consumption	0.53 kW
Phase	Single Phase
Voltage	220-240V
Frequency	50 Hz
Current Draw	2.30 Amps
Motor Speed	2,860 RPM
Maximum Flow Rate	11.3 m³/hr
Suction Port Size	1.5″ / 50mm
Delivery Port Size	1.5″ / 50mm
Connection Type	Quick-connect barrel unions
Strainer Basket Capacity	0.9 litres
Motor Shaft Material	303 Grade Stainless Steel
Mechanical Seal	High-grade carbon/graphite with 316 SS spring
Pump Body Material	Glass-filled thermoplastic
Motor Frame Size	63mm
Total Length	497mm
Thermal Protection	Built-in thermal overload switch
Secondary Seal	Yes – with drain pipe
Suitable For	Domestic pools, ponds, water features
Maximum Recommended Pool Volume	30-40 m³ (approximately 8,000-10,000 gallons)

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

Understanding your operational costs helps you budget effectively and appreciate the Aquamite AQM031’s efficiency advantages:

Basic Calculation:

• Power consumption: 0.53 kW
• Usage scenario: 8 hours/day during 6-month swimming season (April-September)
• Total annual hours: 8 hrs/day × 180 days = 1,440 hours/year
• UK commercial electricity rate: £0.26 per kWh (Q4 2024 average for non-domestic users)

✅ Annual electricity cost: 0.53 kW × 1,440 hours × £0.26/kWh = £198.29 per year

🏊 Real-World Usage Scenarios

Scenario 1: Seasonal Pool (Standard Use) 📍

• Running time: 8 hours/day, 6 months (180 days)
• Annual consumption: 763 kWh
• ✅ Annual cost: £198.29

Scenario 2: Extended Season Pool (April-October) 📍

• Running time: 8 hours/day, 7 months (210 days)
• Annual consumption: 890 kWh
• ✅ Annual cost: £231.40

Scenario 3: Year-Round Water Feature (Continuous) 📍

• Running time: 24 hours/day, 365 days
• Annual consumption: 4,643 kWh
• ✅ Annual cost: £1,207.18

Scenario 4: Pond Filtration (Summer Intensive) 📍

• Running time: 12 hours/day, 5 months (150 days)
• Annual consumption: 954 kWh
• ✅ Annual cost: £248.04

⚡ Energy Efficiency Comparison

Compared to oversized alternatives:

Many homeowners inadvertently install 0.75HP pumps when 0.33HP is sufficient for their pool size. Let’s examine the cost difference:

❌ Typical 0.75HP pump (0.65kW):

• Same 8hr/day seasonal usage: 0.65 kW × 1,440 hours = 936 kWh
• Annual cost at £0.26/kWh: £243.36

✅ Aquamite AQM031 (0.53kW):

• Annual cost: £198.29

💷 Annual saving: £45.07 📈 Over 5 years: £225.35 saved ⏱ Payback period: The cost difference typically pays for itself within the pump’s installation, considering the AQM031’s lower purchase price and reduced running costs

💸 Lifetime Cost Analysis

Over a typical 10-year pump lifespan with seasonal pool use:

✅ Aquamite AQM031:

• Total electricity costs: £1,982.90
• Reliable performance with minimal maintenance
• Secondary seal protection extends motor life

❌ Oversized 0.75HP alternative:

• Total electricity costs: £2,433.60
• Unnecessary power consumption
• 💰 Extra cost over 10 years: £450.70 wasted

🎯 Real World Examples & Applications

🏊 Domestic Swimming Pools

Ideal for residential pools between 20-40m³ (approximately 5,000-10,000 gallons). The 11.3 m³/hr flow rate provides complete water circulation 4-6 times daily when running 8 hours, meeting recommended turnover rates for safe, clean swimming water. Perfect for family pools with sand or cartridge filtration systems.

🛁 Hot Tub Recirculation

Excellent for small hot tubs and spa systems requiring continuous low-flow circulation. The quiet operation won’t disturb relaxation, whilst the corrosion-resistant construction withstands elevated temperatures and aggressive chemical treatments common in spa environments.

🌊 Garden Ponds & Water Features

Maintains healthy pond ecosystems by circulating water through biological and mechanical filters. The 0.9-litre strainer basket captures leaves and debris before they reach the impeller, whilst the reliable continuous operation ensures consistent oxygenation for fish and aquatic plants.

🏠 Ornamental Fountains & Waterfalls

Powers decorative water features with sufficient pressure for attractive displays whilst maintaining economical running costs. The single-phase design suits standard domestic electrical supplies, and the compact footprint allows discreet installation in landscaped areas.

🔄 Pool Equipment Upgrades

Perfect replacement for ageing or inefficient circulation pumps. Homeowners upgrading from older, less efficient models typically see immediate energy savings whilst benefiting from modern thermal protection and the innovative secondary seal system that wasn’t available in legacy pumps.

☀ Seasonal Installations

The quick-connect unions make the AQM031 exceptionally suitable for installations that require winterisation. Simply disconnect the unions, drain via the drain plugs, and store the pump indoors during freezing months to prevent frost damage, then reconnect effortlessly when the season returns.

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💡 Cost Savings Examples

Scenario 1: Replacing an Older Single-Phase Pump 📍

Old pump specifications:

• 0.33HP but older, less efficient motor technology
• Estimated power consumption: 0.75 kW (older motors typically less efficient)
• Seasonal use: 8 hours/day, 180 days
• Annual consumption: 1,080 kWh
• ❌ Annual cost: £280.80

New Aquamite AQM031:

• Modern efficient motor: 0.53 kW
• Same usage pattern
• Annual consumption: 763 kWh
• ✅ Annual cost: £198.29

💰 Annual saving: £82.51 📈 5-year saving: £412.55 ⏱ Payback period: Approximately 2-3 years depending on purchase price

The secondary seal protection also significantly reduces the risk of catastrophic motor failure, potentially saving hundreds in emergency replacement costs.

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Scenario 2: Correctly Sizing vs Oversizing Your Pump 📍

Many pool owners mistakenly believe “bigger is better” and install 0.75HP or 1.0HP pumps when their pool volume only requires 0.33HP. Beyond wasting electricity, oversized pumps can:

• Create excessive flow causing filter channeling and reduced filtration effectiveness
• Generate unnecessary noise
• Increase wear on pool plumbing and fittings

❌ Oversized 1.0HP pump (0.76kW):

• Seasonal usage: 1,094 kWh annually
• Annual cost: £284.44

✅ Correctly sized Aquamite AQM031 (0.53kW):

• Seasonal usage: 763 kWh annually
• Annual cost: £198.29

💰 Annual saving: £86.15 📈 10-year saving: £861.50 💷 Additional benefit: Lower purchase price, reduced plumbing stress, quieter operation

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Scenario 3: Variable Speed vs Single-Speed Economics 📍

Some installers recommend expensive variable-speed pumps for small pools, but the economics rarely justify the premium for installations under 40m³:

❌ Variable-speed pump:

• Initial cost: £500-700 premium over single-speed
• Best-case efficiency: 0.35 kW average consumption
• Annual electricity cost: £131.04 (252 kWh saved)
• ⏱ Payback period: 2-3+ years just on running costs

✅ Aquamite AQM031:

• Lower upfront investment
• Proven reliability with simple, serviceable design
• Annual cost: £198.29
• 💰 Better value proposition for pools in the appropriate size range

For smaller domestic pools, the Aquamite AQM031’s straightforward efficiency, lower purchase cost, and proven reliability often provide superior overall value compared to complex variable-speed alternatives.

📥 Downloads & Resources

📄 Installation and Operation Manual – Comprehensive guide covering installation procedures, electrical connections, priming instructions, maintenance schedules, troubleshooting, and safety warnings in multiple languages (PDF) Download Installation Manual

📄 Aquamite Product Leaflet – Technical specifications, performance curves, sound level data, dimensional drawings, and application guidance for the complete Aquamite range (PDF) Download Product Leaflet

🏆 Why Choose This Product

✅ Proven Reliability in Demanding Applications – Manufactured by an established brand with decades of experience in pool circulation technology, the Aquamite range has proven itself in thousands of domestic installations across Europe, delivering consistent performance season after season

✅ Superior Corrosion Protection – The combination of 316 stainless steel mechanical seal, 303 stainless steel motor shaft, and glass-filled thermoplastic body provides exceptional resistance to the aggressive chemical environments found in swimming pools and spas, significantly outlasting pumps with inferior materials

✅ Secondary Seal Innovation – The patented secondary seal system with drainage channel offers unique motor protection not found on competing pumps in this price range, potentially saving you hundreds of pounds in motor replacement costs if the primary mechanical seal eventually wears

✅ Right-Sized Efficiency – At 0.53kW, this pump delivers optimal performance for its intended application range without wasting energy on excessive flow that provides no filtration benefit, unlike oversized alternatives that inflate running costs whilst potentially reducing filter effectiveness

✅ Easy Installation and Maintenance – Quick-connect unions eliminate the need for special tools during installation or seasonal removal, whilst the clear strainer lid and large basket make routine debris removal a 30-second task rather than a frustrating procedure

✅ Thermal Protection for Peace of Mind – The built-in thermal overload protection automatically safeguards the motor from damage due to blocked strainers, closed valves, or other fault conditions, providing automatic shutdown before expensive damage occurs

✅ Quiet, Efficient Operation – The hydraulically optimised impeller and diffuser design minimises turbulence and reduces operational noise, allowing the pump to run unobtrusively during daytime hours without disturbing outdoor relaxation or neighboring properties

✅ Genuine OEM Quality – Manufactured to exacting standards using quality materials and proper engineering, not a budget import that compromises on component quality to reduce manufacturing costs, ensuring long-term reliability and availability of genuine spare parts

🎁 Why Buy From Parts4Tubs?

✅ Genuine OEM Products – We supply only authentic manufacturer-approved equipment, never cheap imitations or grey-market imports that may lack proper certification or warranty coverage

✅ Expert Technical Support – Our knowledgeable team understands pool equipment and can provide genuine advice on product selection, installation guidance, and troubleshooting assistance

✅ Competitive Pricing – We maintain excellent relationships with manufacturers, allowing us to offer professional-grade equipment at highly competitive prices without compromising on quality or service

✅ Fast, Reliable Delivery – We understand that equipment failures need prompt resolution, which is why we maintain comprehensive stock levels and offer efficient dispatch to minimize your downtime

✅ Complete Product Range – From pumps and filters to chemicals and accessories, we’re your one-stop source for all pool and spa equipment needs, simplifying your purchasing and ensuring compatible components

✨ Summary

The Aquamite AQM031 represents an intelligent choice for homeowners seeking reliable, efficient water circulation for domestic pools, ponds, and water features. With professional-grade construction including 316 stainless steel mechanical seals, patented secondary seal protection, and hydraulically optimised components, this pump delivers performance that belies its affordable operating costs. Annual electricity expenses of just £198 for typical seasonal pool use make it substantially more economical than oversized alternatives, whilst the robust single-piece thermoplastic construction and thermal motor protection ensure dependable operation for years to come. The quick-connect unions and generous 0.9-litre strainer basket simplify installation and maintenance, making this an exceptionally user-friendly choice for residential applications. For pools up to 40m³ requiring proven circulation performance without excessive power consumption, the Aquamite AQM031 offers outstanding value and long-term reliability.