PURPOSE: To enable jetting water to be effectively bubbled up simply by providing a nozzle end with a large diameter outlet, equipping it with a projection and attaching to it a disc provided with plural water-jetting holes.
CONSTITUTION: A nozzle 1 is a stepped cylindrical body with larger diameter outlet, and the larger diameter section 1a is equipped with a projection 2 in its inside. The projection 2 is installed onto an axial core section of a disk 3 and plural number of jetting holes 4... are arranged in an area surrounding the projection. A spherical section 1c of the nozzle 1 is held in a nozzle-mounting table 6 and supported in a free-to-rotate position. When pressured water which was introduced from a water passage 6a into a small diameter section 1b of the nozzle 1 is jetted to the large diameter section 1c, the pressured water flow hits the projection 2 in the large diameter-section 1b to be crushed and turned into whity water with a large number of foams, and thus whitely bubbled up water is jetted out from the outlet 4 after being turned into finer foams.
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