| 摘要 |
PROBLEM TO BE SOLVED: To provide a repairing method for a sewage tank, which can easily repair the sewage tank, especially by bringing in hardware from a manhole. SOLUTION: According to the repairing method for the existing sewage tank arranged in a building, the existing sewage tank (10) is once emptied, and thereafter a film member (1) having deformable water resistance is brought in the sewage tank (10). Then, the film member (1) is stretched along a wall surface of the sewage tank (10) to be fixed thereto.
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