| 摘要 |
PROBLEM TO BE SOLVED: To stabilize the supply amount of chlorine gas and to make always stable electrolytic water high in concentration by providing a chloride ion supply means with a venting means. SOLUTION: When water is supplied to an electrolytic cell 20 by a water feed means 21, gas such as air or the like in a salt tank 22 is discharged to the outside from an air permeable membrane 24a by the pressure of tap water to set a state always free from gas and only a liquid is certainly supplied to an electrolytic means 20 to make it possible to stabilize the concentration of formed hypochlorous acid.
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