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Greens Horticulture - Serving Growers All Over The UK

IWS PRO Flood & Drain Systems

Regular price £661.46 £734.95 | Save £73.49 (9% off)
Tax included. Shipping calculated at checkout.
SKU: 4183
Spend £50.00 more for free delivery (shipping surcharges still apply)

IWS PRO Flood & Drain Systems

PRO - 6-Pot - £661.46
  • PRO - 6-Pot - £661.46
  • PRO - 12-Pot - £773.96
  • PRO - 18-Pot - £908.96
  • PRO - 24-Pot - £1,043.96
  • PRO - 36-Pot - £1,237.46
  • PRO - 48-Pot - 400L Flexitank - £1,529.96
  • PRO - 48-Pot - 750L Flexitank - £1,592.96

IWS PRO Flood & Drain Systems


The IWS Flood & Drain Pro System is the perfect choice for growers seeking a dependable and low-maintenance solution for automated feeding, offering superior results with minimal effort.

Overview The IWS Flood & Drain system is a versatile nutrient delivery setup designed to fit any grow space. It is completely modular, allowing you to add, remove, or rearrange pots anytime, adapting to your specific needs.

This system simplifies the care of numerous plants with its automated feeding method, a favorite among customers for over a decade. It's straightforward to install and operate, and you can precisely manage feeding schedules, making plant maintenance effortless.

Included in the system is a specially designed IWS FlexiTank. These tanks are rigorously tested for durability and functionality, matching traditional water butts but with the added advantage of compact storage when not in use.

Functionality The nutrient solution is pumped from the FlexiTank to the control unit based on schedules set via the IWS Timer. Connected through a network of pipes, the control unit fills, and subsequently, the pots fill until the float valve inside the control unit stops further water flow, perfectly calibrated to prevent overfilling.

Each pot consists of an inner and outer component. The outer pot, which is connected to the system's pipework, facilitates nutrient delivery when the system floods. The inner pot holds the growing media and root mass, allowing nutrient contact while keeping the media contained.

Benefits of Flood & Drain Nutrient Delivery: This system efficiently delivers nutrients right to the root zone. Flooding the pots ensures the roots are surrounded by nutrient solution, enhancing absorption. The ebb and flow of the solution also help aerate the roots, replacing stale air with fresh oxygen, vital for root vitality.

Prevention of Water Logging: By setting intervals for flooding and draining, the system prevents root diseases and maintains optimal oxygen levels in the root zone, promoting healthy growth.

Minimal Management: Once set, the Flood & Drain system requires minimal oversight, needing only occasional replenishment of the FlexiTank.

Automation and Control: The system is easily automated, perfect for indoor setups. Timers manage the flooding frequency and duration, ensuring consistent conditions for plant growth.

Versatility and Ease of Maintenance: Compatible with various growing mediums, the system's range of 6-48 pots offers flexibility in limited spaces. It is also straightforward to maintain and clean, reducing disease risks and fostering a healthier growing environment.

About This System For larger setups or quicker operation, the IWS Flood & Drain Pro Remote is ideal. It uses 25mm fittings and pipes and includes a powerful 3000 liters per hour pump, ensuring faster fill and drain times than standard systems.

Why opt for This Model?

  • The feeding timer is adjustable down to the minute and can be operated outside the grow area.
  • Offers rapid filling and drainage capabilities.
  • Allows precise control over submersion times for root mass.
  • Includes a high-capacity nutrient feed pump.
  • Available in kits ranging from 6 to 48 pots.

Kit Contents:

  • Control Unit
  • Outer Pots
  • Inner Punched Pots
  • FlexiTank
  • 25mm Fittings and Pipe
  • Remote Timer
  • Pot Stands
  • Copper Mats

Inner Pot Options:

  • Aqua pot 6.5L for clay pebbles
  • Culture pot 6.5L for any media
  • Punched pot 9.5L for any media

Standard configuration includes punched pots, catering to various media types.

***Please note these Systems are not stocked - Please allow 3-5 working days for delivery***



Delivery Information

Most orders are shipped within 24 hours.

Orders are currently shipped with Parcelforce (Express 24 service for standard and heavy/bulky items) or DPD Local (Premium next-day), a signature will be required on delivery. We have been shipping orders for 15 years and our courier choices are subject to change as service levels fluctuate.

All orders are shipped on a next day courier service – you will be informed via email or SMS the evening your order leaves us so you know to expect it the next day. On the morning of delivery you will get another SMS or email informing you of the expected delivery time.

If you have any questions on delivery please get in touch.

As the website calculates some charges by weight it is possible that shipping is not calculated correctly. We reserve the right to get in touch in these circumstances we will request the additional amount or offer to refund the order.

UK Delivery

Standard delivery to the UK Mainland addresses (excluding Scottish Highlands & Islands, offshore and N.I.) is charged at a flat rate of just £5.95 per order or £7.95 (for the premium next-day service), standard delivery (with Parcelforce) is free* for orders over £50.

*Large and/or heavy items attact a surcharge from our courier - shipping surcharges are calculated per item and are applied regardless of order value.

Non-UK mainland destinations are charged by weight.

International Delivery

Coming soon…

Collect in Store (Bristol)

We now offer a 'collect in store' option, which allows you to pay for goods online and collect from our Bristol store at time that suits you (within our opening hours).

The process is simple:

  1. place your order and pay online, select 'Pick Up' at checkout;
  2. receive an email confirming that the order is ready for collection;
  3. bring/show your confirmation email and photo ID to collect your order.


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