DRAIN APPARATUS

PURPOSE:To provide a drain apparatus, which can eliminate dust or hair included in a bathtub water before the water is filled into a washing machine, can discharged tone eliminated dust or hair by eliminating means easily, and is maintained and controlled easily. CONSTITUTION:A drain apparatus is provided with a circulating pipe line 20 for bath heating by repeat ignition a washing machine 50, a water filling pipe line 60, a filter 61, a pipe line for suppling hot or cold water 40, a back washing water drain pipe line 70 and when a bathtub water is filled into the washing machine 50, a circulating pump 22 is driven and a water path in which water flows from the circulating pipe line 20 for bath heating by repeat ignition through the water filling pipe line 60, the filter 61, and the water filling pipe line 60, to the washing machine 50, is only formed. When water is filled into the washing machine 50 for rinsing, a water path in which water flows from the pipe line for suppling hot or cold water 40, through the water filling pipe line 60, to the washing machine is only formed and when the filter 61 is back washed, a water path in which water flows from the pipe line for suppling hot or cold water 40, through the water filling pipe line 60, through the filter 61 inversely, to the back washing water drain pipe line 70 is only formed. Each water path as above mentioned is controlled by a controller 51, 80.