Abstract: A massage nozzle is disclosed including a vortex chamber having a water intake section provided to form a vortical flow therein, a spouting port provided to spout the vortical flow to form a negative pressure region, a water-spray plate provided at a distal end of the spouting port, the water-spray plate having an opening at a center thereof and a plurality of water-spray holes around the opening. The water-spray plate allows a large area suction and smooth movement while moving in contact with the skin. Further a movable member having an opening may be provided with at least a part inserted into the vortex chamber. Some part of a first portion of the movable member has a larger outside dimension than the spouting port, allowing physical vibration of the movable member in addition to the suction massage effect.

Abstract: A massage nozzle related to the present invention comprises a vortex chamber having a water intake section provided to form a vortical flow therein, a spouting port provided to spout the vortical flow to form a negative pressure region, a water-spray plate provided at a distal end of the spouting port, the water-spray plate having an opening at a center thereof and a plurality of water-spray holes around the circumference of the opening. This water-spray plate prevents water from spattering even when water is released in the air, and allows a large area suction and therefore smooth movement while moving in contact with skin. Further a movable member having an opening, at least some part of which is inserted into the vortex chamber to effect the negative region externally, the some part including a first portion which has a larger outside dimension than the spouting port. Thus a great massage effect due to physical vibration of the movable member can be obtained in addition to the suction massage effect.

Abstract: A method of and system for cleansing a toilet or urinal are proposed which require less maintenance work and are safer to users than conventional methods using acid substances, and which can prevent the formation of stain on the toilet or urinal effectively and suppress the generation of ammonia sufficiently, thus accomplishing a sufficient countermeasure to the stench. A urinal (A1) is provided with a continuous electrolytic cell (1) having at least a pair of electrodes, a passage formed between the electrodes, and an inlet and an outlet that lead to the passage. Tap water is electrolyzed by the continuous electrolytic cell (1), whereby free chlorine is produced. Then the water containing free chlorine produced is supplied to the urinal (A1), and the water containing free chlorine sterilizes the inside of the urinal, thus preventing urease, an enzyme carried by bacteria, from acting to decompose urea.

Abstract: An electrolyzing apparatus for flowing water containing chlorine ions has an electrolytic cell provided with at least one pair of electrodes, a passage formed between the electrodes, an inlet port and an outlet port communicating the passage, and a power supply for applying voltage across the electrodes.