| 摘要 |
PURPOSE: A method for cleaning a water receiving pipe is provided to remove impurities from an inner wall of the water receiving pipe by supplying high pressurized water into the water receiving pipe with feeding pressurized air into a filtering layer. CONSTITUTION: High pressurized air is fed into a water receiving pipe so as to remove impurities included in a filtering layer deposited on an upper portion of the water receiving pipe(S1). A high pressurized hose is inserted into the water receiving pipe so as to supply high pressurized water thereby removing rust sticking to an inner wall of the water receiving pipe(S2). Dirty water including impurities is continuously pumped to the exterior by using a pump and a vacuum device(S3). Then, high pressurized air is again fed into the water receiving pipe to remove remaining impurities from the filtering layer.
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