the place at which the pipe and hot-water bath section come together is slightly separated and built to enable the circulation of heated water . パイプと貯湯部分の結合部は上下にずらされており、熱せられた水が循環する仕組みと成っている。
in october , 416 , in order to resolve a confusion in the uji-kabane system (the system of clans and hereditary titles ) among various clans , the emperor carried out kugatachi ordeal (also known as kukatachi or kukadachi , which refers to hot-water ordeal ) at amakashi no oka hill in asuka . 4年9月(415年10月)、諸氏族の氏姓の乱れを正すため、飛鳥甘樫丘にて盟神探湯(くがたち)を実施する。