Master Gardener Dick Perreault explains the various parts of a drip irrigation system to Plant Pro Marion Gold. Some of the key elements of a drip irrigation system he is pointing out include the mainline, filter, valve, automatic control timer, and pressure regulators. There are three zones or submain lines, each with their own pressure regulator. A backflow preventer is also an essential part of a drip irrigation system, and in this particular garden it is located at the main water source and is not part of the riser shown here in the garden.

Some of the newly installed drip tubing at the East Farm Demonstration Vegetable Garden.

Dick Perreault discusses the various drip irrigation system designs used in the garden.

Recently installed drip tubing at East Farm, being fed by a plastic submain line.

A mister, one of the several types of drip irrigation emitters used in the Demonstration Vegetable Garden.