The system comprises emitters, plastic tubes, and drip tape. Installing the network is a great deal of work, but once done... moreThe system comprises emitters, plastic tubes, and drip tape. Installing the network is a great deal of work, but once done the slow dripping works efficiently to deliver just the right amount of water. The emitters are installed very close to the plant roots and sometimes even buried under the surface of the soil for effective irrigation. The setup requires either half-inch or 1/4th inch tubing depending on the type of plant.