| 摘要 |
PROBLEM TO BE SOLVED: To provide a soft water supply facility capable, in a case where the soft water supply capacity of a preexisting soft water supply facility is augmented, of enhancing the capacity while effectively utilizing the preexisting facility.SOLUTION: In a soft water supply facility furnished with: a water softener 10 for removing hardness components included within a body of raw water; a soft water tank 1 connected to the water softener for stocking the soft water manufactured by the water softener; and a water supply tank 7 configured between the soft water tank and a soft water use device using the soft water for stocking the soft water transported from the soft water tank so as to supply the same into the soft water use device. The operation of the water softener is controlled based on the water level within the soft water tank, and an add-on water softener 9 for directly supplying soft water into the water supply tank 7 is configured apart from the water softener. The operation of the add-on water softener 9 is controlled on the basis of the water level within the soft water tank 7. |
