IWS Basic System 36 PotIWS BASIC FLOOD & DRAIN 36 POT SYSTEMS The IWS is a flood and drain system that can accommodate between 6 48 pots. It is easy to assemble and can be used with a variety of growing media, will all plants fed through a central reservoir. This system is suitable for all levels of gardener, whether youre just starting out or in the commercial field. A pump delivers the nutrients to your plants, taking away the need for manual watering and saving you time

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Once the pre-fertilisation is gone

Highly concentrated

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SANLIGHT EXNTENSION LEAD - 1M

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and restore your plants with Advanced Nutrients Revive – trusted by professional growers and available now at Holland Horticulture

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as well as the IWS and Wilma systems

Use 1-2 times weekly

Start tracking the fundamentals today