DEVICE FOR MAINTAINING WATER QUALITY OF STORAGE TANK

摘要

PROBLEM TO BE SOLVED: To provide a device for maintaining water quality of a storage tank by which water temperature is measured without measuring a residual chlorine concentration of stored water to determine an electrolytic treating time and then a desired residual chlorine concentration is controlled. SOLUTION: This device is provided with a water treating means by which an electrochemical treatment for the stored water in the storage tank is performed to maintain the residual chlorine concentration contained in the stored water in the storage tank at a desired value, and the water treating means controls the electrochemical treating time in accordance with water temperature of the stored water to maintain the residual chlorine concentration contained in the stored water at a desired value.