| 摘要 |
PROBLEM TO BE SOLVED: To realize quick activation of a siphon during drainage while suppressing occurrence of failure in a temporary storage tank in which inside partitions are formed.SOLUTION: A temporary storage tank includes a first individual storage part 11 and a second individual storage part 12 which are configured by partitioning a region surrounded by side walls 16, 18 by partition walls 14, each of which can temporarily store drain from a water section appliance, and which communicate with each other at a predetermined or higher water-level. A drain inflow entrance 22 is provided in the side wall 16 of the first individual storage part 11, and drain exhaust ports are provided in the first individual storage part 11 and the second individual storage part 12. On the supposition that a distance from the side wall 16 to the partition wall 14 in the drain inflow direction (arrow-I-direction) is D2 and a distance from the inflow entrance 22 to the partition wall 14 is D1, the first individual storage part 11 has a portion where D2<D1 is satisfied. |
