FOUNTAIN EQUIPMENT UTILIZING COMPRESSED AIR

PROBLEM TO BE SOLVED: To provide a fountain equipment floated on water which spouts water by utilizing low cost compressed air without any power so that the operating cost can be reduced. SOLUTION: The spray device comprises a closed type spray tank 1 having a spray nozzle 4, a compressed air inlet port 2, and a water flow inlet port 3. The tank 1 is set on the water so that the interior thereof is empty, while a water flow inlet port 3 is opened to the water, and a compressed air introducing port 2 is opened to the atmosphere, whereby the tank 1 sinks into the water under its own weight or under its own weight and external loads, while the water flows into the tank 1 from the port 3, and the air within the tank is discharged to the atmosphere through the port 2. If a compressed air is introduced into the tank 1 filled fully with the water, the surface of the water in the tank 1 is pressed so that a water spray 14 is forced out of the nozzle 4.