| 摘要 |
PURPOSE: To provide a method for cleaning a pipe which is applicable to a pipe with a branch pipe, is free from clogging due to stripped deposit, and can control breakage even in the presence of a deteriorated part in the pipe. CONSTITUTION: After a pipeline W is formed by connecting a negative pressure source to one end side of a pipe 1, the negative pressure source is operated to generate an air current in the pipeline W to remove deposit on the inner surface of the pipe 1. |
