The IWS Flood & Drain system is an automated hydroponic system which provides massive yields with minimal effort. Designed to be easily expanded, the IWS Flood & Drain consists of three parts: pots; a reservoir; and a brain. Simply fill up the reservoir with your nutrient solution and the brain controls the rest, feeding your plants at regular intervals. This process also ensures your nutrient solution is mixed regularly (preventing any additives from settling in the tank or pots) and also acts to replenish oxygen supplies around the root zone. Available in 6, 12, 24, 36, and 48 pot systems, you can add extra pots to your set-up with ease, meaning you can increase the number of plants you grow without having to buy another complete system.