🚚 Order within for same-day dispatch (Mon–Thu before 3:30pm)
0114 2458 581
sales@acornhorticulture.com
65 Deep Ln, Sheffield S5 0DU
IWS Systems & Spares
IWS systems and spares are designed for growers who want a larger, more advanced hydroponic setup with efficient irrigation and strong plant support. These systems are popular in indoor grow rooms because they offer scalable feeding and watering across multiple plants.
At Acorn Horticulture, we supply IWS systems and spare parts in the UK, including complete kits, modules and replacement components. Whether you are expanding an established grow room, building a high-capacity setup with pipe fittings and reservoirs, or maintaining an existing system, our IWS range helps keep everything running smoothly.
-9%
IWS Brain Bucket Flood and Drain Remote | Replacement Control Unit
Original price was: £225.00.£205.00Current price is: £205.00. incl. Vat
The IWS Brain Bucket Flood and Drain Remote is a replacement brain/control unit for IWS Flood and Drain systems. Designed to manage system control as part of an active hydroponic setup, this replacement unit is ideal for repairs, servicing and keeping compatible IWS systems running reliably. Please note: this unit requires a remote timer unit, available separately.
- ✔ Replacement brain/control unit for IWS Flood and Drain systems
- ✔ Designed for compatible IWS active hydroponic setups
- ✔ Ideal for system repairs, servicing and maintenance
- ✔ Helps control flood and drain system operation
- ✔ Requires remote timer unit, available separately
Hot
IWS Flood and Drain Systems – 6, 12, 24, 36 and 48 Pot | Active Hydroponic Grow System
Price range: £545.00 through £1,045.00 incl. Vat
The IWS Flood and Drain System is a professional active hydroponic system designed to deliver water-based nutrients through your chosen growing medium. Available in 6, 12, 24, 36 and 48 pot systems, it refreshes the root zone with oxygen every feed cycle, helping support strong growth, efficient nutrient uptake and consistent system performance.
- ✔ Active flood and drain hydroponic system
- ✔ Available in 6, 12, 24, 36 and 48 pot options
- ✔ Inner pot options for clay pebbles, soil, coco, mixed media or any media
- ✔ Includes tank with pumps, brain pot, timer unit, pots, stands, fittings and pipework
- ✔ Replaces stale oxygen in pots with fresh oxygen during each feed cycle
- ✔ Ideal for larger grow rooms and serious hydroponic setups
IWS Dripper Systems – 6, 12, 24, 36 and 48 Pot | Automated Hydroponic Drip Feed System
Price range: £389.00 through £1,185.00 incl. Vat
The IWS Dripper System is a professional automated drip feed system designed for hydroponic, coco and soil-based growing. Available in 6, 12, 24, 36 and 48 pot options, this complete system uses precision dripper technology to deliver water and nutrients directly to each plant, helping improve consistency, efficiency and control across larger growing setups.
- ✔ Complete IWS automated dripper system
- ✔ Available in 6, 12, 24, 36 and 48 pot systems
- ✔ Inner pot options for clay pebbles, soil, coco, mixed media or any media
- ✔ Includes tank, water pump, filter, timer, control bucket and fittings
- ✔ Uses leading DIG dripper technology for efficient nutrient delivery
- ✔ Ideal for larger grow rooms and professional irrigation setups
-16%
30m Roll of 16mm IWS Piping | Flood and Drain System Pipework
Original price was: £44.50.£37.50Current price is: £37.50. incl. Vat
30m Roll of 16mm IWS Piping | Flood and Drain System PipeworkThis 30m Roll of 16mm Piping is designed for IWS flood and drain systems, hydroponic pipework layouts and compatible irrigation setups. High quality, long lasting and easy to cut to size, it is ideal for building, extending, repairing or maintaining IWS grow systems.
- ✔ 30m roll of 16mm hydroponic piping
- ✔ Designed for IWS flood and drain systems
- ✔ Ideal for system builds, repairs and extensions
- ✔ Suitable for compatible irrigation and grow system layouts
- ✔ Easy to cut to the required length
- ✔ Useful spare pipework for IWS system maintenance
IWS 25mm Sealing Glands Assembly | Watertight Hydroponic Pipe Fitting
£1.50 incl. Vat
The IWS 25mm Sealing Glands Assembly is designed to create a dependable gas and watertight seal on compatible IWS 25mm fittings. Ideal for hydroponic systems, irrigation layouts and reservoir connections, this small but essential fitting helps prevent leaks and maintain reliable system performance.
- ✔ Sealing glands assembly for IWS 25mm fittings
- ✔ Helps create a gas and watertight seal
- ✔ Ideal for hydroponic pipework and reservoir connections
- ✔ Useful spare or replacement part for IWS systems
- ✔ Helps prevent leaks in compatible grow system layouts
IWS Universal Straight Piece | Pipe Connector for Hydroponic Systems
£0.50 incl. Vat
The IWS Universal Straight Piece is a simple, reliable pipe connector designed for use with compatible IWS hydroponic systems, irrigation layouts and pipework setups. Ideal as a spare, replacement or system-building component, it helps create neat, secure straight-line pipe connections in grow systems.
- ✔ Genuine IWS universal straight connector
- ✔ Designed for compatible IWS pipework layouts
- ✔ Ideal for straight-line pipe connections
- ✔ Useful spare or replacement fitting
- ✔ Suitable for hydroponic and irrigation system maintenance
IWS Universal Elbow | Hydroponic Pipe Elbow Connector
£0.50 incl. Vat
The IWS Universal Elbow is a reliable pipe elbow connector designed for compatible IWS hydroponic systems, irrigation layouts and grow system pipework. Ideal for creating neat angled connections between water supply lines, it is quick to install and useful as a spare, replacement or system-building fitting.
- ✔ Genuine IWS universal elbow connector
- ✔ Designed for compatible IWS pipework layouts
- ✔ Ideal for angled pipe connections
- ✔ Quick-connect design for easy installation
- ✔ Useful spare or replacement fitting
IWS Universal T Piece | Hydroponic Pipe T Connector
£0.50 incl. Vat
The IWS Universal T Piece is a reliable pipe connector designed for compatible IWS hydroponic systems, irrigation layouts and grow system pipework. Ideal for splitting or joining water supply lines, it helps create neat, secure and flexible pipework layouts in drip feed, flood and drain and multi-pot grow systems.
- ✔ Genuine IWS universal T connector
- ✔ Designed for compatible IWS pipework layouts
- ✔ Ideal for splitting or joining water supply lines
- ✔ Useful spare or replacement fitting
- ✔ Suitable for hydroponic and irrigation system maintenance
Round Copper Disc – Large | IWS Inner Pot Root Control Disc
£2.00 incl. Vat
The Round Copper Disc – Large is designed for use with IWS inner pots, helping support cleaner, more controlled root development in hydroponic and drip feed systems. Simple, durable and easy to fit, it is a useful spare or replacement part for growers maintaining IWS systems and compatible pot setups.
- ✔ Large round copper disc for IWS inner pots
- ✔ Helps support root control in pot-based systems
- ✔ Ideal spare or replacement part for IWS setups
- ✔ Simple to position inside compatible inner pots
- ✔ Suitable for hydroponic and media-based grow systems
Round Copper Disc – Small | IWS Inner Pot Root Control Disc
£1.00 incl. Vat
The Round Copper Disc – Small is designed for use with compatible IWS inner pots, helping support cleaner root control and easier system maintenance in hydroponic and media-based grow systems. Compact, simple and easy to fit, it is ideal as a spare or replacement part for IWS systems.
- ✔ Small round copper disc for IWS inner pots
- ✔ Helps support root control in compatible pot systems
- ✔ Useful spare or replacement part for IWS setups
- ✔ Simple to position inside compatible inner pots
- ✔ Suitable for hydroponic and media-based grow systems
IWS Tank 100L and 250L | Space Saver Hydroponic Reservoir
Price range: £90.00 through £115.00 incl. Vat
The IWS Tank is a space-saving hydroponic reservoir designed for use with IWS systems and custom multi-pot grow setups. Available in 100L and 250L sizes, these tanks are ideal for storing water or nutrient solution and connecting to compatible irrigation, flood and drain or drip feed systems.
- ✔ Space saver reservoir for IWS systems
- ✔ Available in 100L and 250L sizes
- ✔ Suitable for hydroponic and multi-pot grow systems
- ✔ Ready to connect to compatible IWS setups
- ✔ Ideal for water and nutrient solution storage
- ✔ Useful for custom irrigation and reservoir builds
IWS Flexitanks 100L, 250L and 400L | Collapsible Hydroponic Water Reservoir
Price range: £115.00 through £180.00 incl. Vat
IWS Flexitanks are compact, collapsible water storage tanks designed for hydroponic systems, grow rooms and irrigation setups. Available in 100L, 250L and 400L sizes, they provide a practical reservoir solution that is easy to assemble, space-saving and ideal for storing water or nutrient solution.
- ✔ Collapsible IWS water storage tank
- ✔ Available in 100L, 250L and 400L sizes
- ✔ Tool-free assembly in minutes
- ✔ Space-saving design for grow rooms and storage areas
- ✔ Ideal for hydroponic systems, irrigation and nutrient storage
- ✔ Useful alternative to rigid plastic reservoirs
-10%
IWS 48 Pot Pro Flood & Drain System UK | Commercial Hydroponic Grow System
Original price was: £1,390.00.£1,250.00Current price is: £1,250.00. incl. Vat
IWS 48 Pot Pro Flood & Drain System is a high-performance hydroponic system designed for large-scale indoor growing and commercial setups. Featuring 48 pots, high-flow pipework, automated flood and drain cycles, and a central control system, it delivers consistent feeding, improved root oxygenation, and high-yield performance.
- ✔ Complete 48 pot flood and drain hydroponic system
- ✔ Automated feeding for large grow rooms
- ✔ Fast flood and drain cycles for root oxygenation
- ✔ Ideal for commercial and serious indoor growers
- ✔ Designed for consistent growth and higher yields
IWS 48 Pot Flood & Drain System UK | Hydroponic Grow System with Tank & Timer
£1,050.00 incl. Vat
IWS 48 Pot Flood & Drain System is a complete hydroponic growing system designed for large indoor grow rooms and high-yield setups. Featuring 48 pots, a central 350L tank, pump-fed irrigation, and automated flood cycles, it delivers consistent feeding, strong root development, and reliable results.
- ✔ Complete 48 pot hydroponic grow system
- ✔ 350L tank with pump and timer control
- ✔ Automated flood and drain feeding cycles
- ✔ Improves root oxygenation and nutrient uptake
- ✔ Ideal for large grow rooms and serious growers
IWS 36 Pot Flood & Drain System UK | Hydroponic Grow System with 400L Tank
£895.00 incl. Vat
IWS 36 Pot Flood & Drain System is a high-capacity hydroponic growing system designed for large indoor grow rooms and high-yield setups. Featuring 36 pots, a 400L tank, pump-fed irrigation, and automated flood cycles, it delivers consistent feeding, strong root oxygenation, and reliable performance.
- ✔ Complete 36 pot hydroponic grow system
- ✔ Large 400L tank with pump and timer control
- ✔ Automated flood and drain feeding cycles
- ✔ Improves oxygenation and nutrient uptake
- ✔ Ideal for serious growers and large grow rooms
IWS 24 Pot Flood & Drain System UK | Hydroponic Grow System with Tank & Timer
£745.00 incl. Vat
IWS 24 Pot Flood & Drain System is a complete hydroponic growing system designed for larger indoor grow spaces and high-yield setups. Featuring 24 pots, a central tank, pump-fed irrigation, and automated flood cycles, it delivers consistent feeding, improved root oxygenation, and strong plant performance.
- ✔ Complete 24 pot hydroponic grow system
- ✔ Central tank with pump and timer control
- ✔ Automated flood and drain feeding cycles
- ✔ Improves oxygenation and nutrient uptake
- ✔ Ideal for medium to large grow rooms
IWS 12 Pot Flood & Drain System UK | Complete Hydroponic Grow System with Tank
£645.00 incl. Vat
IWS 12 Pot Flood & Drain System is a complete hydroponic growing system designed for medium indoor grow spaces and high-yield setups. Featuring 12 pots, a central tank, pump-fed irrigation, and automated flood cycles, it delivers consistent feeding, improved root oxygenation, and reliable plant growth.
- ✔ Complete 12 pot hydroponic grow system
- ✔ Automated flood and drain feeding cycles
- ✔ Central tank with pump and timer control
- ✔ Improves root oxygenation and nutrient uptake
- ✔ Ideal for grow tents and medium grow rooms
IWS 6 Pot Flood & Drain System UK | Hydroponic Grow System with 100L Tank
£545.00 incl. Vat
IWS 6 Pot Flood & Drain System is a compact hydroponic growing system designed for grow tents and smaller indoor setups. Featuring 6 pots, a 100L tank, automated flood cycles, and pump-fed irrigation, it delivers consistent feeding, improved root oxygenation, and strong plant growth.
- ✔ Complete 6 pot hydroponic grow system
- ✔ 100L tank with pump and timer control
- ✔ Automated flood and drain feeding cycles
- ✔ Ideal for grow tents and smaller grow rooms
- ✔ Improves oxygenation and nutrient uptake
IWS Sub Pump | Submersible Pump for Dripper Systems
£74.50 incl. Vat
The IWS Sub Pump is a reliable submersible pump designed for use with the IWS Dripper System and other compatible drip feed systems. Supplied with a 5m lead and 13Amp plug, it provides dependable water movement for nutrient delivery, irrigation and hydroponic system operation.
- ✔ Genuine IWS submersible pump
- ✔ Designed for the IWS Dripper System
- ✔ Suitable for other compatible dripper systems
- ✔ Supplied with 5m lead and 13Amp plug
- ✔ Ideal for nutrient delivery and irrigation setups
- ✔ Useful replacement or spare pump for IWS systems
What Are IWS Systems?
IWS systems are advanced indoor irrigation systems designed to water and feed multiple plants efficiently from a central nutrient source. They are often used in larger indoor grow rooms where growers want a scalable and organised system for consistent plant care.
These setups are popular because they make it easier to manage multiple plants while maintaining control over irrigation and feeding.
Why Choose an IWS System?
IWS systems are ideal for growers who want a more structured and scalable hydroponic approach.
- Suitable for multi-plant indoor setups
- Helps deliver consistent feeding across the system
- Designed for larger and more organised grow rooms
- Can be expanded and maintained with spare parts
- Supports efficient irrigation management
For growers running bigger rooms or higher plant numbers, IWS systems offer a practical way to improve consistency and control.
IWS Kits, Modules and Spares
This category can include both complete systems and replacement components used for maintenance or expansion.
- IWS kits – complete systems for multi-plant watering and feeding
- Modules and accessories – used to configure or expand the setup
- Spare parts – replacement components to keep systems running correctly
Access to spares is especially important in larger systems where reliability and easy maintenance matter.
IWS Systems and Hydroponic Growing
IWS systems are often used as part of a larger hydroponic environment and work well alongside:
- Water pumps to move feed solution
- Pipe and fittings to connect system components
- Measuring tools to monitor pH and EC
- Nutrients and boosters to support healthy plant growth
This combination helps create a more stable and efficient indoor feeding system.
Who Are IWS Systems Best For?
IWS systems are best suited to growers who want to run a more advanced multi-plant setup with better irrigation control. They are particularly useful in dedicated grow rooms where consistency, scalability and easier plant management are important.
For smaller or simpler setups, growers may also want to consider Autopot systems or drip feed systems.
Helpful Guides for Feeding and Indoor Setup
If you want to learn more about nutrients, pH and indoor growing systems, explore our guides:
- Understanding the Role of Nutrients in Hydroponic Gardening
- The Role of pH and EC in Maintaining Plant Health in Hydroponic Systems
- Grow Tent Setup – How to Set Up a Full Grow Room
These guides will help you get more from your indoor irrigation system.
Shop IWS Systems and Spares in the UK
At Acorn Horticulture, we stock IWS systems and spare parts for indoor growers across the UK. Whether you need a complete multi-plant setup or replacement components to maintain an existing system, our range is designed to support efficient and organised indoor growing.
Browse our full range above to find the right IWS products for your setup.
FAQs
What is an IWS system?
An IWS system is an indoor irrigation setup designed to feed and water multiple plants from a central source.
Are IWS systems good for larger grow rooms?
Yes, they are especially useful in larger grow rooms where multiple plants need consistent feeding.
Can I buy spare parts for IWS systems?
Yes, spare parts are important for maintenance, repairs and expanding an existing setup.
What else do I need with an IWS system?
Most growers also use reservoirs, pumps, nutrients and measuring tools as part of the wider setup.
