Flood & Drain Systems
Explore our range of flood and drain systems and components, designed for efficient hydroponic growing. These systems provide reliable irrigation, improved root oxygenation, and consistent nutrient delivery, helping support healthy plant growth.
Here at The Greenhouse Effect, we stock everything you need in one place. From complete systems to individual trays and accessories, we’ve got everything you need to grow with confidence.
Alien Flood & Drain PRO Silver Series 15 Litre
Original price was: £924.99 – £7,744.99Price range: £924.99 through £7,744.99. Price range: £832.49 through £6,970.49Current price is: £832.49 – £6,970.49Price range: £832.49 through £6,970.49.Alien Flood & Drain PRO Silver Series 15 Litre
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Alien Flood & Drain PRO Silver Series 30 Litre
Original price was: £974.99 – £9,744.99Price range: £974.99 through £9,744.99. Price range: £877.49 through £8,770.49Current price is: £877.49 – £8,770.49Price range: £877.49 through £8,770.49.Alien Flood & Drain PRO Silver Series 30 Litre
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IWS 10 Litre Pot Stand
Original price was: £4.50.£4.05Current price is: £4.05.IWS 10 Litre Pot Stand
IWS 10 Litre Pro Remote System with Flexi Tank
Original price was: £649.99 – £1,739.99Price range: £649.99 through £1,739.99. Price range: £584.99 through £1,565.99Current price is: £584.99 – £1,565.99Price range: £584.99 through £1,565.99.IWS 10 Litre Pro Remote System with Flexi Tank
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IWS 10 Litre Standard Remote with FlexiTank
Original price was: £539.99 – £1,149.99Price range: £539.99 through £1,149.99. Price range: £485.99 through £1,034.99Current price is: £485.99 – £1,034.99Price range: £485.99 through £1,034.99.IWS 10 Litre Standard Remote with FlexiTank
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IWS 10 Litre Standard System with FlexiTank
Original price was: £399.99 – £989.99Price range: £399.99 through £989.99. Price range: £359.99 through £890.99Current price is: £359.99 – £890.99Price range: £359.99 through £890.99.IWS 10 Litre Standard System with FlexiTank
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IWS 16 Litre Pro Remote System with FlexiTank
Original price was: £649.99 – £1,399.99Price range: £649.99 through £1,399.99. Price range: £584.99 through £1,259.99Current price is: £584.99 – £1,259.99Price range: £584.99 through £1,259.99.IWS 16 Litre Pro Remote System with FlexiTank
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IWS 16 Litre Standard System with FlexiTank
Original price was: £409.99 – £999.99Price range: £409.99 through £999.99. Price range: £368.99 through £899.99Current price is: £368.99 – £899.99Price range: £368.99 through £899.99.IWS 16 Litre Standard System with FlexiTank
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IWS 25 Litre Pro Remote System with Flexi Tank
Original price was: £719.99 – £1,459.99Price range: £719.99 through £1,459.99. Price range: £647.99 through £1,313.99Current price is: £647.99 – £1,313.99Price range: £647.99 through £1,313.99.IWS 25 Litre Pro Remote System with Flexi Tank
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IWS FlexiTank Only
Original price was: £49.99 – £219.99Price range: £49.99 through £219.99. Price range: £44.99 through £197.99Current price is: £44.99 – £197.99Price range: £44.99 through £197.99.IWS FlexiTank Only
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IWS Flood & Drain Trident 16L
Original price was: £719.99 – £1,839.99Price range: £719.99 through £1,839.99. Price range: £647.99 through £1,655.99Current price is: £647.99 – £1,655.99Price range: £647.99 through £1,655.99.IWS Flood & Drain Trident 16L
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IWS Flood & Drain Trident 25L
Original price was: £749.99 – £2,079.99Price range: £749.99 through £2,079.99. Price range: £674.99 through £1,871.99Current price is: £674.99 – £1,871.99Price range: £674.99 through £1,871.99.IWS Flood & Drain Trident 25L
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IWS Flood and Drain Brains
Original price was: £199.99 – £389.99Price range: £199.99 through £389.99. Price range: £179.99 through £350.99Current price is: £179.99 – £350.99Price range: £179.99 through £350.99.IWS Flood and Drain Brains
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IWS Flood and Drain Remote Timer Only
Original price was: £149.99.£134.99Current price is: £134.99.IWS Flood and Drain Remote Timer Only
IWS Pro Fittings – 25mm
Original price was: £0.30 – £4.49Price range: £0.30 through £4.49. Price range: £0.27 through £4.04Current price is: £0.27 – £4.04Price range: £0.27 through £4.04.IWS Pro Fittings – 25mm
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IWS Pro FlexiTank Complete
Original price was: £169.99 – £324.99Price range: £169.99 through £324.99. Price range: £152.99 through £292.49Current price is: £152.99 – £292.49Price range: £152.99 through £292.49.IWS Pro FlexiTank Complete
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IWS Pro Pump Kit Only
Original price was: £119.99.£107.99Current price is: £107.99.IWS Pro Pump Kit Only
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IWS Spanners
Original price was: £3.50.£3.15Current price is: £3.15.IWS Spanners
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IWS Standard Fittings
Original price was: £0.75 – £1.49Price range: £0.75 through £1.49. Price range: £0.68 through £1.34Current price is: £0.68 – £1.34Price range: £0.68 through £1.34.IWS Standard Fittings
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IWS Standard FlexiTank Complete
Original price was: £124.99 – £229.99Price range: £124.99 through £229.99. Price range: £112.49 through £206.99Current price is: £112.49 – £206.99Price range: £112.49 through £206.99.IWS Standard FlexiTank Complete
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IWS Standard Pump Kit Only
Original price was: £74.99 – £84.99Price range: £74.99 through £84.99. Price range: £67.49 through £76.49Current price is: £67.49 – £76.49Price range: £67.49 through £76.49.IWS Standard Pump Kit Only
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IWS Trident Add on Modules
Original price was: £21.99 – £26.99Price range: £21.99 through £26.99. Price range: £19.79 through £24.29Current price is: £19.79 – £24.29Price range: £19.79 through £24.29.IWS Trident Add on Modules
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IWS Trident Spares
Original price was: £1.50 – £15.99Price range: £1.50 through £15.99. Price range: £1.35 through £14.39Current price is: £1.35 – £14.39Price range: £1.35 through £14.39.IWS Trident Spares
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Newa Jet NJ3000 Water Pump for IWS Pro Systems
Original price was: £79.99.£71.99Current price is: £71.99.Newa Jet NJ3000 Water Pump for IWS Pro Systems
Terra Aquatica Ebb & Grow
Original price was: £239.99.£215.99Current price is: £215.99.Terra Aquatica Ebb & Grow