IWS
IWS hydroponic systems from the Bristol shop: the standard flood and drain system, the IWS PRO, the Trident in 16 and 25 litre pots, the Dripper System Pro with small and large stands, and the fittings, spares and flexi-tube that build and extend them.
In StockIWS
Flexi-Tube 16mm (OD) - by the metre
£1.58
In StockIWS
Flexi-Tube 6mm (OD) - 50m Roll
£35.96
In StockIWS
Flexi-Tube 6mm (OD) - by the metre
£0.86
In StockIWS
IWS Flood & Drain (Std. Remote)
£571.46
In StockIWS
£700.16
In StockIWS
IWS Trident Spares & Accessories
£0.86
In StockIWS
£0.86
In StockIWS
£0.36
In StockIWS
IWS Dripper System Pro - Large Stands
£454.46
In StockIWS
IWS Dripper System Pro - Spares & Accessories
£0.36
In StockIWS
£4.28
Pre-OrderIWS
Flexi-Tube 25mm (OD) - 30m Roll
£58.46
Pre-OrderIWS
Flexi-Tube 25mm (OD) - by the metre
£2.21
Pre-OrderIWS
Flexi-Tube 16mm (OD) - 30m Roll
£44.96
Shop onlyIWS
IWS Trident Flood & Drain - 25L
£733.46
Pre-OrderIWS
IWS Trident Flood & Drain - 16L
£699.26
Pre-OrderIWS
IWS Dripper System Pro - Small Stands
£530.96
About IWS
Why IWS
IWS designed the flood and drain system that runs more UK grow rooms than any other: a brain pot floods every pot in the room from one tank and drains it back, on one timer, and grows a pot at a time. The Dripper System Pro brings the same modular idea to drip feeding.
Starting out
A 4 or 6 pot standard system with clay pebbles, an air stone in the tank and a weekly change. Add pots as you go.
Growers' Guides
- Dripper Systems: Origin, IWS Dripper Pro and DIY Drip LinesHow a hydroponic drip irrigation system works, the Origin and IWS dripper systems we sell, the parts to build your own, and how to keep drippers clear.
- Flood and Drain Systems: How Ebb and Flow Hydroponics WorksHow flood and drain (ebb and flow) hydroponics works, the IWS systems we sell, what to grow in, tank care, and flood and drain vs DWC, NFT and Autopot.
- Clay Pebbles and Rockwool Cubes: How to Use Them in HydroponicsWhat clay pebbles and rockwool are, how to rinse, soak and plant in them, which hydroponic systems each suits, and how they compare with coco.