Step 1: Nutrient solution will flow from the buttom water tank to the top under the work of the water pump.
Step 2:The trap will send the nutrient solution to every top planting holes.
Step 3: The nutrient solution will flow down layer by layer, and then return to the water tank.
Step 4: So that the roots are kept moist without being soaked in the water, keeping the roots in the air.