| 摘要 |
PROBLEM TO BE SOLVED: To provide a bath system utilizing ocean deep water, which is desirable for healthy bathing by utilization of pure and eutrophic ocean deep-water containing abundant natural trace elements. SOLUTION: The bath system is provided with a bathtub 1 and a bathtub circulation filter apparatus 2. Bathing water containing ocean deep water is circulated between the bathtub 1 and the filter apparatus 2 by using pipings 9, 10 for filter circulation to maintain the bathing water in a bathing-optimum condition by filtering purification, sterilization, and heating. As bathing water, raw water, a mixture of any one of desalted water and concentrated water and tap water is used. The filter apparatus 2 comprises a circulating pump 4, a deduster 3 for removing foreign matters contained in the bathing water, a filter tube 5 for clarifying the bathing water by filtration, a chlorine sterilizer 6, a heat exchanger 7 for heating up to a temperature suitable for bathing, and a control board 8.
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