WATER DISTRIBUTING/SUPPLYING DOUBLE PIPE, METHOD OF LAYING WATER DISTRIBUTING/SUPPLYING DOUBLE PIPE, BRANCH PIPE JOINT FOR WATER DISTRIBUTING/SUPPLYING DOUBLE PIPE, AND METHOD OF BRANCHING THE DOUBLE PIPE USING BRANCH PIPE JOINT

摘要

PROBLEM TO BE SOLVED: To lay a water distributing pipe and a water supplying pipe in one pipe line, in response to an increase of a water supply amount or the like.;SOLUTION: The water distributing pipe 2 is laid in an existing water supplying pipe K or an existing water distribution pipe K, in the water supply pipe for supplying the water to a water distribution pond, and in the water distribution pipe for supplying the water from the water distribution pond to each domestic house, and the water supply pipe 3 is laid in the water distribution pipe 2 laid hereinbefore. The one existing pipe K is thereby modified into the double pipe 1 comprising water distribution pipe 2 and the water supply pipe 3.;COPYRIGHT: (C)2008,JPO&INPIT