BATHROOM DRAINAGE TRAP IN MULTIPLE DWELLING HOUSE, MODIFICATION METHOD FOR WATER COLLECTION PIPE, AND ITS DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method and a device for modifying the inside of a drainage trap and a water collection pipe from a washing place side. SOLUTION: Depth of the water collection pipe 106 is measured from a water collection port 109 of the drainage trap 105, a resin pipe 1 having length matching with the depth is prepared, and putty 7 is applied to a lower end in the water collection pipe 106 on the washing place side. Next, a diameter expansion device 12 heating a diameter enlarged part 13 is inserted into the resin pipe 1 whose lower end side is heated, and the diameter expansion device 12 is operated to expand diameter of a heated and softened part of the resin pipe 1 and is pressed in the water collection pipe 106 on which putty 7 is applied. Then, putty 7 is applied on an inner face of the drainage trap 105, and a cover 23 is dropped into the drainage trap 105 and is fixed by putty 7 to modify the inside of the drainage trap 105 and the water collection pipe 106. COPYRIGHT: (C)2005,JPO&NCIPI