The plants are irrigated from an
overhead reservoir using drip
tubing. The water drains onto a
sheet of corrugated plastic which
drains into a rain gutter and then
into a tray. A sump pump
recirculates the water back to the
reservoir.Gardens situated in a space with water
and drain can be constructed using an
open system. Water from the tap is
supplied to the plants using drip irrigation.
Excess water runs out the drain.
Indoor drip emitters are placed over
each container, in this case,
rockwool.