Spray apparatus for spraying water and discharging residual water and method for controlling the same

A spray apparatus comprising:

• a sprayer controller engagedly operating with a content reproduced so as to control a sprayer;
• and
• the sprayer for spraying water or draining residual water under the control of the sprayer controller,
• wherein the sprayer comprises:
• a water inlet pipe connected to a water supply source on one end thereof and connected to a first solenoid valve on the other end thereof;
• the first solenoid valve connected to the water inlet pipe on one end thereof and connected to a connection pipe on the other end thereof in such a manner as to be controlled in the connection state thereof by means of the sprayer controller;
• the connection pipe connected to the first solenoid valve on one end thereof and connected to a second solenoid valve on the other end thereof;
• the second solenoid valve connected to the connection pipe and a drain pipe on one end thereof and connected to a nozzle tube on the other end thereof in such a manner as to be controlled in the connection state thereof by means of the sprayer controller;
• the nozzle tube connected to the second solenoid valve on one end thereof and connected to nozzles on the other end thereof;
• and
• the drain pipe connected to the second solenoid valve on one end thereof and having a drain hole formed on the other end thereof.