| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for connecting a drainage system, which can suppress variations in construction quality when the drainage system is connected to a tank body.SOLUTION: A structure for connecting a drainage system to a bottom surface part 101 of a tank body 100 comprises: a drainage hole 103 that is formed on the bottom surface part 101; a connected body 111 that is arranged on the downside of a peripheral edge part 109 of the drainage hole 103 in such a manner as to vertically overlap the peripheral edge part 109 and that configures a part of the drainage system; and a connector 30 that fixes the peripheral edge part 109 and the connected body 111 in the state of sandwiching them. |
