| 摘要 |
PROBLEM TO BE SOLVED: To provide a water tank that improves workability when attaching a water tank to an attachment object and eliminates the risk of water leakage after attachment.SOLUTION: This invention provides a discharge pump tank 20 as a water tank that can be attached to a water-purification tank 10 as an attachment object, wherein a flange part 34 that can be joined to a flange part 15 as a joining object of the water-purification tank 10 is provided integrally at an external surface part 30a. |
