A capillary table has several valleys along it’s length in which the nutrient solution runs, it has an absorbent layer that lies over these valleys and acts like a wick to draw the moisture to the top of the table. By placing a protective layer on top of this, thus preventing foreign objects falling into these small channels. The plants are placed on top of the table and the wicking action enables the plant to take up what moisture it may need.
The amount of solution fed into the capillary table is regulated by a Smart valve.
The solution can be fed by either a gravity tank, or using a reservoir and small pump.