BATHTUB WASHING DEVICE

PROBLEM TO BE SOLVED: To provide a bathtub washing device which reduces the quantity of hot water sprayed upon pre-rinsing at an initial stage of bathtub washing for the dissolution of sebum stains and the activation of a detergent component.SOLUTION: The bathtub washing device 1 for performing the pre-rinsing with hot water supplied from a water heater 3 through a tapping pipe 31 prior to the washing with a detergent, includes a temperature detection means 9 for detecting the temperature of the hot water supplied from the tapping pipe 31 upon the pre-rinsing; and a control means 7 for controlling the duration time of the pre-rinsing and/or the integrated flow rate of the hot water based on the hot water temperature detected by the temperature detection means 9.