BUBBLE JETTING APPARATUS FOR BATHTUB

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PROBLEM TO BE SOLVED : To provide a bathing apparatus, being comfortable, giving jet water in the bathtub in a wide range by mixing high concentration oxygen into the re-heating circuit utilizing a water heater. SOLUTION : The apparatus is connected to a re-heating circulation circuit 20 in which hot water in the bathtub circulates through a pump 18, having a mixing means 28 for supplying gas into the re-heating circulation circuit 20, in such a structure that the gas supplied to the re-heating circulation circuit 20 is jetted from a nozzle 31, and the nozzle 31 has a projection part 32 directing a part of the flow inward in an approximately circular section.