IWS 16 Litre Standard System

The 16 Litre Standard IWS system you all the benefits of a flood and drain system at an economical price, with the ability to grow larger plants

Flood and drain is a horticultural technique whereby nutrient rich solution is pumped into a container, filled with growing media, and then pumped back out.

The draining process draws air into the media which helps keep the rootzone healthy, promotes vigorous growth and exceptional yields.


IWS 16 Litre Flood and Drain systems can be used with a variety of media such as coco, 60/40(coco/clay), clay pebbles and some growers use soil but for the best results we recommend a good quality 60/40 mix such as Gold Label or Ecothrive Coco Clay.

IWS 16 Litre Pro Remote Flood and Drain comes with your choice of a Flexi Tank or a Rigid Water Butt(if you require a different size, contact us for details).

6 Pot  –  100 litre Flexi or Rigid

12 Pot  –  250 litre Flexi or Rigid

18 Pot –  250 litre Flexi or Rigid  

24 Pot  –  400 litre Flexi or 350 litre Rigid

36 Pot  –  400 litre Flexi or 700 litre Rigid

48 Pot  –  750 litre Flexi or 700 litre Rigid

The system includes reservoir, inner and outer pots, all pipework, brain and timer.

(Pot stands and copper discs are not available 16 litre system).


  • 16 litre pots for larger harvests
  • Great value for money
  • Choice of water tank
  • For healthy, high yielding plants
Weight N/A
Tank Option

Rigid Water Butt, Flexi Tank


12 Pot – 250 Litre Tank, 18 Pot – 250 Litre Tank, 24 Pot – 350 Litre Tank, 24 Pot – 400 Litre Tank, 36 Pot – 400 Litre Tank, 36 Pot – 700 Litre Tank, 48 Pot – 700 Litre Tank, 48 Pot – 750 Litre Tank, 6 Pot – 100 Litre Tank

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