| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cleaning method capable of cleaning a private part drain pipe and a common section vertical drain pipe of a building having a plurality of stories. <P>SOLUTION: A private part drain pipe 71 and a common section vertical drain pipe 72 of a building having a plurality of stories are cleaned by a cleaning tool 1 which is provided with a front head member 25 via a floating guide mechanism 20 at the tip of a rotary nozzle device 10 and to which high pressure water is supplied from a high pressure water generator 60. A rotary two-hole nozzle device with two injecting holes is used as the rotary nozzle device. The cleaning tool, which is configured so that the length of each of the rotary nozzle device, an intermediate guide member 21, and the front head member is shorter than the inner diameter of the common section vertical drain pipe, is inserted from a trap 71a of the private part drain pipe and led through the private part drain pipe and the common section vertical drain pipe, and the private part drain pipe and the common section vertical drain pipe are cleaned by high pressure water injected from the injecting holes. <P>COPYRIGHT: (C)2013,JPO&INPIT |
