| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof pan which attachably/detachably mounts a backflow prevention device therein without moving an equipment item or a tank body such as a bathtub, which are mounted at an upper side of the waterproof pan, and also can facilitate cleaning of the inside of a pipe with the use of a metal wire and a hose pipe, and to provide the tank body.SOLUTION: A take out port 7 is provided at a side face part 6 of a body part 2 that mounts an equipment item on its upper side and has a pan part 3, a wall part 5 and the side face part 6, and also is provided separately from a first drain outlet 10 and a second drain outlet 11. A cover member 13 is attached to the take out port 7. In addition, a backflow prevention device 20 that is attached at a lower side of the first drain outlet 10 can be attached to or detached from the waterproof pan by detaching the cover member 13 from the take out port 7. |
