IWS – Flood & Drain – STANDARD 16MM
£436.04£950.20 Select options

IWS – Flood & Drain – STANDARD 16MM


IWS – Flood & Drain – STANDARD 16MM

Intelligent Watering System

The IWS Flood and Drain system is the most popular of the IWS systems.  It offers the ultimate in control, exceptional drainage, and maximum flexibility and scalability.

How IWS Flood and Drain hydroponic systems work

At the set times solution is pumped from the water butt into each pot allowing the plants to feed and pushing out air. Floats ensure the same level of solution rises into every pot.

When the solution drains from the pots fresh air is pulled into the rootzone. The drained solution is pumped back to the water butt, rebalancing the pH and EC.

Because stale air is replaced with fresh oxygen-rich air at every feed the roots are well oxygenated which drives more productive growth.

Drainage is excellent with this grow system, so it is important to remember to increase the amount of feeds as the plants grow.


Additional information

Weight20 kg
No of Pots / Tank size

6 Pot 100L Flexible Water Butt, 12 Pot 250L Flexible Water Butt, 18 Pot 250L Flexible Water Butt, 24 Pot 250L Flexible Water Butt, 36 Pot 400L Flexible Water Butt, 48 Pot 400L Flexible Water Butt

Pot Type

Punched Pot 9.5L (Any Media)