When the timer shuts the pump off the nutrient solution flows back into the reservoir. When the timer turns the pump on nutrient solution is pumped into the growth tray. This action is normally done with a submerged pump that is connected to a timer. An air pump supplies air to the air stone that bubbles the nutrient solution and supplies oxygen to the roots of the plants.ĥ EBB and Flow The Ebb and Flow system works by temporarily flooding the grow tray with nutrient solution and then draining the solution back into the reservoir. The platform that holds the plants is usually made of Styrofoam and floats directly on the nutrient solution. The nutrient solution is drawn into the growing medium from the reservoir with a wickĤ Water Culture System The water culture system is the simplest of all active hydroponic systems. This is a passive system, which means there are no moving parts. It’s the growing of plants without soil.ģ The Wick System The Wick system is by far the simplest type of hydroponic system. Comes from Latin and means “Working Water”.
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