Drip irrigation systems in your garden are centered around a long length of pressure compensating drip tubing. The tubing will also need a pressure regulator and a "Y filter" to keep it clear of impurities. When laying the tubing down in your garden, be sure to keep the kinks out of the line. When choosing an emitter for your irrigation system, keep in mind the needs of your particular garden, and choose either a single emitter or one of various multi-emitters. Depending on the size of your garden and the number of plants, the system should be run anywhere from several minutes to several hours. It is very important not to over-water or under-water your garden to keep your plants healthy.