Flood and Drain RDWC Hydroponic Digital Controller with Pumps and Distribution Reservoir

The Flood and Drain RDWC Hydroponic Digital Controller and Distribution Reservoir can be connected to up to 48 of our 2.75-gallon grow sites sold separately (Artisun Technology Flood and Drain RDWC Hydroponic 6 Grow Site Expansion Kit) or you can use your own grow sites with 3/4" tubing. Artisun Technology's Flood and Drain RDWC Hydroponic Digital Controller is easy to program with different 'Flood' and 'Drain' pump durations to recirculate the water / nutrients throughout the system. Programmable for different Day and Night operation with LED indicators to show current status of float switches and pump outputs. When in 'Flood' mode, the Flood pump is turned on and water is pumped from an external main reservoir tank (not provided) to the Distribution Reservoir until the 'High' float switch is triggered and all grow sites are 'Flooded' with nutrient solution. (We suggest a tall recycle bin or a 55-gallon drum for the external reservoir tank, taller is preferable.) When in 'Drain' mode,