| 摘要 |
PROBLEM TO BE SOLVED: To drain economically and suitably a unit bath having a drip tray provided with a plurality of drain ports. SOLUTION: This draining structure of a unit bath is equipped with a drip tray, a plurality of drain ports provided in the drip tray and drain traps which are connected to draining equipment of a building frame and provided in a smaller number than the drain ports. The drain traps and the drain ports are connected by drain connecting pipes, and at least one of the drain connecting pipes is provided with an air vent means for venting inside air.
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