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IWS R-DWC PRO Systems (Recirculating & Dumpback)

From £499.95
In stock
Grouped product items
4 Pot IWS R-DWC with Timer and 100L FlexiTank Code: 4621
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8 Pot IWS R-DWC with Timer and 250L FlexiTank Code: 4624
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12 Pot IWS R-DWC with Timer and 250L FlexiTank Code: 4627
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16 Pot IWS R-DWC with Timer and 400L FlexiTank Code: 4630
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20 Pot IWS R-DWC with Timer and 400L FlexiTank Code: 4633
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24 Pot IWS R-DWC with Timer and 750L FlexiTank Code: 4636
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Want extreme & uniform growth in a system that's easy to manage? You need a Recirculating & Dumpback R-DWC System.

You get faster nutrient uptake, healthier roots and better growth. Systems run 24/7 so no timer's needed and very little media so your system is easy to manage

  • 19L Oxypots
  • DWC growing method (high oxygen, max growth!)
  • Flexible layout: Expandable up to 24 pots
  • Recirculating & dumpback (stable, fresh feed) 
  • Simple to assemble, with no timer needed 

NOTE:  To run your system, you need airstones, air line and an air infusion pump. Save time & money - buy as R-DWC Air Kit.


Bigger, Faster Growing Plants

Plants have unlimited access to nutrients and water. And there's lots of oxygen to speed up nutrient uptake & growth!  

Healthy Roots, No Diseases

All the oxygen keeps roots healthy, most root diseases can't thrive in an oxygen rich environment.

Stable PH, CF & Temperature

Your feed is constantly mixed! There's always the same nutrient profile in all pots. You can even rotate pots for even light exposure

Easy Access To Roots

Each misting chamber has an access panel you can use to quickly check root health, water levels and air stone position. 

Uniform Growth

Feed mixes as it circulates - this keeps your pH, CF, temperature stable. At set times, your feed is mixed with fresh feed in your tank.

Quiet To Run

The pump's hardly ever on and air stones won't rattle.

Easy To Manage

Hardly any media's needed and you've only got one tank to manage.  


What Is It?

It's a recirculating DWC system - roots grow straight into an oxygen and nutrient rich solution that constantly travels across pots.


As it circulates, your feed mixes and cools along the way:

  • Your pH, temperature & CF stays stable 
  • Oxygen gets trapped in your feed


To keep your feed fresh, a remixing timer is included.  At set times, feed is sent back to your tank. Here, it mixes with all the feed in your tank

  • Helps to cool your nutrient
  • Keeps temperature, CF & pH stable

It's just what plants need for epic root growth, faster nutrient uptake, and bigger yields.


Top Tips

Keep your system sterile with Silver Bullet Roots

 It kills 99.99% of root diseases and stays active in tanks for 5 weeks!

If you already use Oxy-Plus 11.9%, switch to Silver Bullet and you’ll save 55%.




Growing Media Calculator


Growing Media Calculator
System - 1L Net Pots Exact Amount Number of Bags
4 Pot 4 Litres 1 x 10L Clay Pebbles
8 Pot 8 Litres 1 x 10L Clay Pebbles
12 Pot 12 Litres 2 x 10L Clay Pebbles
16 Pot 16 Litres 2 x 10L Clay Pebbles
20 Pot 20 Litres 2 x 10L Clay Pebbles
24 Pot 24 Litres 3 x 10L Clay Pebbles

Each system includes:
• Brain Control Unit
• 19 Litre outer pots
• 1 Litre inner pots (net pots)
• FlexiTank
• 25mm pipework and fittings

You will also need to buy:
• An IWS R-DWC Systems Air Kit (or 1 air stone per pot + required length of air line and an air pump)

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