Whirlpool bath with descaling function

A whirlpool bath with descaling function, comprising:

• a bathtub body 10 including a bathtub 11;
• a suction port 20 sucking the water contained in said bathtub 11;
• first jet nozzles 30 jetting bubble water into said bathtub 11;
• a circulation pipe 40 including a water supply pipe and a return pipe 42, wherein said water supply pipe 41 is connected to said first jet nozzles 30 and supplies water to said first jet nozzles 30, and said return pipe 42 is connected to said suction port 20 and returns water in said bathtub 11;
• a pump 50 installed in said circulation pipe 40 to provide a water pressure for sucking the water in said bathtub 11 through said suction port 20 and for jetting bubble water through said first jet nozzles 30;
• a bypass pipe 60 branched from said water supply pipe 41 and connected to said return pipe 42 to directly return the water introduced into said water supply pipe 41 to said pump 50 through said return pipe 42;
• and
• a second jet nozzle 70 installed in said bypass pipe 60 and mixing air with water passing through said bypass pipe 60 to generate and jet bubble water, wherein the scale of said circulation pipe 40, said pump 50 and said bypass pipe 60 is removed by bubble water generated by said second jet nozzle 70.