Variable Water Pump Flow Pro 4000

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RRP: £99.99 Special Price £59.99
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Overview
  • Pond Pump Variable Flow Pro 4000
  • Feed Filters, Waterfalls, and Small Water Features
  • Control Your Flow: 1200L/h to 4000L/h (10W to 35W)
  • Includes a Digital Control Panel with Adjustable Flow
  • Choice of Multiple Flow Steps for Precision
  • Handles Solids up to 6 mm
  • Ideal for Small Ponds, Aquariums, and Features
  • Outlet: 15mm, 20mm, 25mm
  • UK Plug & Power cable length: 5m
  • Energy-saving technology reduces costs
  • 2-Year Warranty for Peace of Mind
Overview
  • Pond Pump Variable Flow Pro 4000
  • Feed Filters, Waterfalls, and Small Water Features
  • Control Your Flow: 1200L/h to 4000L/h (10W to 35W)
  • Includes a Digital Control Panel with Adjustable Flow
  • Choice of Multiple Flow Steps for Precision
  • Handles Solids up to 6 mm
  • Ideal for Small Ponds, Aquariums, and Features
  • Outlet: 15mm, 20mm, 25mm
  • UK Plug & Power cable length: 5m
  • Energy-saving technology reduces costs
  • 2-Year Warranty for Peace of Mind

Variable Flow Pond Pump - 4,000L/H - 35W

The ultimate high-performance pond pump offering powerful 4,000L/H flow rate and 4.5-meter head height, perfect for small ponds, aquariums, hydroponics, and water features. With energy-saving technology, feed mode functionality, and a compact design, this versatile pump delivers reliable performance that adapts seamlessly to every season and project.

✓ 4,000L/H Flow Rate ✓ 4.5M Head Height ✓ Feed Mode ✓ Energy Saving ✓ 2-Year Warranty

Key Features

Engineered for power and efficiency, the Variable Water Pump Flow Pro 4000 combines professional performance with smart features, making it ideal for small ponds, aquariums, and compact water systems.

Powerful Performance

  • 4,000L/H maximum flow rate.
  • 4.5-meter maximum head height.
  • 35W power consumption.
  • Handles solids up to 6mm.

Smart Operation

  • 10-minute feed mode for hassle-free maintenance.
  • Up to 65% energy savings compared to conventional pumps.
  • Amphibious installation options (submersible or inline).
  • Compact design for discreet installation.

Durability & Protection

  • Durable ABS plastic construction.
  • 2-year motor warranty for added peace of mind.
  • Compact size: 180 x 85 x 110mm (L x W x H).
  • Weatherproof washers and collars ensure watertight connections.

Professional Performance for Compact Water Systems

Experience reliable water movement with this high-capacity pond pump. Delivering an impressive 4,000L/H flow rate and 4.5-meter maximum head height, it powers small water features, aquariums, and hydroponic setups. Its innovative design operates at just 35W, saving up to 65% power compared to traditional pumps—all while maintaining robust performance for continuous, reliable operation.

Maximum Performance

  • 4,000L/H flow capacity.
  • 4.5-meter head height for vertical applications.
  • 35W power draw ensures efficiency.
  • Ideal for small-scale systems and compact settings.

Seasonal Adaptability

  • Higher flow in summer for waterfalls and circulation.
  • Reduced flow in winter for energy savings and controlled operations.
  • Maintains water quality and enhances oxygen levels.
  • Adjustable flow rate for year-round flexibility.

System Protection

  • Handles solids up to 6mm effortlessly.
  • Built with robust ABS plastic for long service life.
  • Reliable operation in both submersible and inline setups.
  • Weatherproof seals for worry-free outdoor installations.

Versatile Applications for Compact Water Systems

Designed for optimal performance across a range of applications, this professional-grade pump is perfect for small ponds, aquariums, hydroponics, and water features. Its compact dimensions (180 x 85 x 110mm) allow for discreet installation, while the amphibious design ensures compatibility with both submerged and inline setups. This makes the Variable Water Pump Flow Pro 4000 ideal for both new installations and upgrading existing water systems.

Pond Circulation

  • Small garden ponds with moderate water demands.
  • Aquariums requiring controlled circulation.
  • Compact water features with intricate designs.
  • Indoor or outdoor water displays.

Water Feature Applications

  • Small waterfall pumps with variable flow capabilities.
  • Compact fountain displays.
  • Stream circulation systems.
  • Pressurized filtration setups for optimal cleaning.

Specialist Uses

  • Hydroponic systems.
  • Water distribution for compact setups.
  • Irrigation in small-scale environments.
  • Filtration and biological processing systems.

Smart Features for Effortless Operation

Take control with this pump’s advanced features. Its integrated feed mode conveniently pauses operation for 10 minutes during fish feeding, while the energy-efficient design ensures reduced running costs. Amphibious installation options, combined with durable construction and intelligent flow control, ensure seamless operation in any environment, making this pump a professional-grade solution for home or compact projects.

Feed Mode

  • 10-minute pause cycle for aquarium or pond feeding.
  • Automatic restart function for ease of operation.
  • Reduces stress on aquatic life during feeding.
  • Microprocessor-controlled timing ensures accuracy.

Energy Efficiency

  • Up to 65% energy savings compared to traditional pumps.
  • 35W maximum power consumption during peak operation.
  • Eco-friendly design lowers energy usage and costs.
  • Optimized for long-term savings.

Installation Flexibility

  • Submersible or inline use for versatile setup options.
  • Compact dimensions for discreet positioning.
  • 5-meter power cable with UK plug.
  • Weatherproof seals for outdoor compatibility.

Quality Assurance & Support

We stand behind the quality and performance of the Variable Water Pump Flow Pro 4000 with a comprehensive 2-year warranty, ensuring peace of mind with every purchase. Each unit undergoes rigorous testing for reliable performance in demanding environments. Our dedicated technical support team is always ready to assist with installation guidance, troubleshooting, and application suggestions to help you get the most out of your pump.

Comprehensive Protection

  • 2-year warranty coverage.
  • Quality-tested components.
  • Reliable materials for long service life.
  • Designed for professional-grade applications.

Expert Support

  • Professional technical assistance.
  • Guidance for seamless installation.
  • Advice on maximizing performance.
  • Responsive troubleshooting solutions.

Satisfaction Guaranteed

  • Professional-grade performance.
  • Proven reliability in water systems.
  • Customer-focused support.
  • Backed by rigorous quality testing.

The Professional Choice for Compact Water Systems

The Variable Water Pump Flow Pro 4000 represents a perfect balance of power, efficiency, and reliability for compact water system applications. With its 4,000L/H capacity, energy-saving technology, and intelligent features, this pump delivers exceptional results across a wide range of environments. Whether maintaining small ponds, powering hydroponics, or creating captivating water displays, the Variable Water Pump Flow Pro 4000 is the ideal solution for professional-grade performance and versatility.

Experience the Difference With PowerBee Ltd

Award-Winning Quality

  • Powerbee Ltd is a Best Buy Award Winner 2021-2025
  • 16 Years of Solar Power Expertise
  • CE Certified Products
  • Professional Support Within 24 Hours

Customer Protection

  • 30-Day Money-Back Guarantee
  • 12-Month Standard Warranty
  • Free UK Mainland Shipping
  • Support Hotline: 07786948899
✓ 30-Day Money-Back Guarantee ✓ Free UK Delivery ✓ Powerbee : A Best Buy Award Winner 2021-25
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Technical Specifications

Specification Details
Operating Voltage AC 240V, 50Hz (UK Mains)
Power Consumption 35W (Max)
Maximum Flow Rate 4,000 Litres Per Hour
Maximum Head Height 4.5 Meters
Flow Adjustment Variable (Controlled via External Controller)
Pump Dimensions 180 x 85 x 110mm (L x W x H)
Weight Approx. 2 KG
Outlet Size 15mm, 20mm, 25mm (Tapered Connector Includes Collar and Ring)
Solids Handling Up to 6mm Particles
Installation Type Submersible or Inline (Amphibious)
Power Cable Length
  • 2.4m pump to controller cable.
  • 5m lead cable from controller to UK 3-pin plug.
Maximum Water Temperature 35°C
Feed Mode 10-Minute Pause Function
Energy Efficiency Up to 65% Savings vs Conventional Pumps
Dry Run Protection Yes (Auto Shutoff)
Motor Type Brushless (Maintenance-Free)
Safety Certifications CE, UKCA, RoHS Compliant
Warranty 2 Years (Motor)
Recommended Applications Small Fish Tanks (400L), Ponds, Fountains, Water Features
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Installation Guide: Variable Water Pump Flow Pro 4000

Complete installation instructions for your high-performance 4,000L/H pump. Follow these steps carefully to ensure safe setup and optimal operation of your professional water system.

✓ Mains Power Safety ✓ Amphibious Installation ✓ Feed Mode Setup ✓ RCD Protection Required

⚠️ Critical Safety Precautions

  • RCD Protection Mandatory - Must be installed on circuit (30mA trip).
  • IP68 Cable Gland - Ensure waterproof seal around power cable entry point.
  • Dry Hands - Never handle plug/connections with wet hands.
  • Professional Advice - Consult electrician if unsure about outdoor wiring.
  • GFCI Outlet - Recommended for all pond pump installations.

Step-by-Step Installation

1. Power Preparation

  • Install a weatherproof outdoor socket (IP66 minimum) within 1m of pond edge.
  • Connect pump's 5m cable to an RCD-protected circuit.
  • Route cables to avoid tripping hazards (use cable clips or conduit).

2. Pump Positioning

Submersed Installation
  • Place on stable surface (pump stand recommended).
  • Minimum 30cm water depth over pump.
  • Keep 50cm clearance from walls/debris.
Inline (Dry) Installation
  • Mount on level surface above waterline.
  • Prime pump before first use (fill with water).
  • Install isolation valves for maintenance.

3. Plumbing Connections

  • Use 15mm, 20mm, or 25mm ID hose (reinforced for pressure applications).
  • Secure with stainless steel hose clamps.
  • Install union joints for future maintenance.
  • Attach weatherproof washers to connectors and secure collars for watertight connections.

4. Final Checks

  • Verify all connections are watertight.
  • Ensure cable gland is properly sealed.
  • Test feed mode function (10-minute pause).

Mains Power Requirements

Requirement Specification
Voltage 230-240V AC ±10%
Frequency 50Hz
Circuit Protection 6A fuse (BS1362)
Socket Type IP66 Outdoor Socket
Cable Routing Protected from UV/abrasion
Power Cable 2.4m pump to controller, 5m controller to UK 3-pin plug

Maintenance Schedule

Weekly

  • Check for debris blocking the pump intake.
  • Inspect the cable gland seal for any signs of water ingress.

Monthly

  • Clean the impeller chamber to prevent blockages and maintain flow efficiency.
  • Test the RCD (or GFCI) functionality to ensure electrical safety.

Seasonal

  • Winter: Reduce the flow rate for energy savings and controlled operations.
  • Summer: Check for overheating and optimize circulation to promote water quality.
  • Inspect all hose connections and seals for wear or damage caused by seasonal weather changes.

Professional Troubleshooting

Issue Solution
Pump won't start
  • Check if the RCD or GFCI is tripped.
  • Verify power supply at the outdoor socket.
  • Inspect the pump for debris jams or blockages.
Reduced flow
  • Clean the pump intake and impeller chamber.
  • Inspect hoses for kinks or bends that may restrict water flow.
  • Ensure the pump is operating at the correct voltage.
Feed mode not working
  • Restart the pump by cycling its power.
  • Check the control button or settings on the external controller.

How It Works: Variable Water Pump Flow Pro 4000 

Technical overview of your high-performance 4,000L/H pump's operation and internal mechanisms. Understand the professional-grade water movement system that powers your pond, aquarium, or water feature.

✓ Centrifugal Pump Technology ✓ Variable Flow Control ✓ Thermal Protection ✓ Feed Mode Operation

Core Pump Mechanism

  • Centrifugal Force - Rotating impeller creates water movement through kinetic energy.
  • Pressure Differential - Intake creates low pressure, outlet creates high pressure for efficient circulation.
  • Brushless Motor - Maintenance-free operation powered by a magnetic drive.
  • Sealed Chamber - Waterproof design prevents internal corrosion and ensures durability.

Flow Control System

Setting Flow Rate Power Draw Use Case
High 4,000L/H 35W Summer operation, ponds, aquarium circulation.
Medium 2,500L/H 20W Standard aquarium or pond maintenance.
Low 1,200L/H 10W Winter operation for energy savings.

Installation Modes

Submersed Operation

  • Water enters through bottom intake grill for smooth, uninterrupted flow.
  • Natural cooling from surrounding water for silent operation.
  • Ideal for small ponds, aquariums, and compact water features.

Inline Operation

  • Water fed through inlet pipe for efficiency in closed-loop systems.
  • Pump remains dry for convenient access and maintenance.
  • Requires priming before operation to ensure proper water flow.

Protection Systems

Thermal Protection

  • Automatic shutdown at 75°C.
  • Self-resetting once cooled to safe temperatures.

Dry Run Protection

  • Detects absence of water and auto-shuts down.
  • Prevents seal damage and overheating.

Overload Protection

  • Current monitoring prevents motor damage.
  • Built-in fuse ensures safety during extreme overload.

Feed Mode Operation

  • 10-minute pause cycle for feeding fish or performing minor maintenance.
  • Microprocessor-controlled timing ensures reliability.
  • Automatic restart without the need for manual intervention.
  • LED indicator displays active mode for easy monitoring.

Technical Specifications

Component Specification
Motor Type Brushless AC Synchronous
Impeller Glass-reinforced nylon
Shaft Type Ceramic for smooth operation and durability.
Seal Type Double mechanical ceramic for watertight operation.
Control System Microprocessor with thermal sensor for precise flow adjustment.
Connections 15mm, 20mm, 25mm tapered outlet for flexible plumbing.
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