| 摘要 |
<p>PURPOSE: To completely drain washing water without remaining it inside a feed pipe for feeding air. CONSTITUTION: This device is composed of a guide pipe 40, the one end of which is inserted into a drain pipe 31 having a drain valve and the other end of which is connected to an air bubble generator, and a feed pipe 50, the one end of which is connected to the lower part of a water tank and the other end of which is connected to guide pipe, washing water flows out through a gap G formed from a protruding part 60 provided between the outer peripheral edge of the guide pipe and the inner peripheral edge of the feed pipe, and water pooled inside the guide pipe or feed pipe is drained outside.</p> |
