Underground sprinkler system

An underground water kit for handling a large section of lawn forming a water zone, the kit comprising:

• a pop-up sprinkler with a riser that telescopes upward to emit water of at least 10 feet and is disposed within a vertical underground trench;
• a flow control member for switching between one or more water zones, the flow control member configured to be connected with an above ground outdoor water supply;
• an elongated pipe to support the water zone of the lawn and lying within an underground horizontal trench lying approximately 3 inches below ground level and extending laterally between the above ground water supply and the pop-up sprinkler;
• an elbow coupler situated below the pop-up sprinkler for interconnecting the pop-up sprinkler with the elongated pipe, the elbow coupler situated within the vertical underground trench extending between the underground horizontal trench and a lower end of the vertical trench disposed beneath the pop-up sprinkler;
• one end of the elongated pipe connected with the elbow coupler and an opposite end of the elongated pipe connected with the flow control member;
• and
• one or more piping couplers for interconnecting the elbow coupler to a lower end of the pop-up sprinkler wherein a constant water supply is maintained between the above ground water supply to the pop-up sprinkler through the elongated pipe.