The invention relates to a laundry care appliance (100) comprising a detergent solution container (109) for receiving washing detergent solution, a heating element (112) for heating the washing detergent solution, a drain opening (113) arranged on the detergent solution container (109) for discharging washing detergent solution, wherein the drain opening (113) is connected to a drain hose (115) and can be closed by a closure (114), wherein the drain hose (115) is connected to a detergent solution pump (121) and to a controller (129) for controlling the detergent solution pump (121). The controller (129) is designed to activate a conveying operating of the detergent solution pump (121) in a first time period, in order to convey washing detergent solution through the drain opening (113) out of the detergent solution container (109) into the drain hose (115). The controller (129) is designed to discontinue the conveying operation of the detergent solution pump (121), in a second time period following the first time period, when the drain opening (113) is closed by the closure (114), in order to receive the pumped-out washing detergent solution in the drain hose (115), in order to detach a biofilm from the drain hose (115). The controller (129) is designed to activate the detergent solution pump (121), in a third time period following the second time period, to pump out the washing detergent solution and the detached biofilm from the drain hose (115), in order to clean the drain hose (115).