Rörledningssystem, sätt att åstadkomma ett sådant system samt ett verktyg

摘要

Each branch pipe (4a, 4b) extends between a well (3) and a property. The branch pipe is connected to a main pipe (2a, 2b) inside the well via a connection device (7). The network comprises at least two main pipes and branch pipes connecting the main pipes to properties. Independent claims are also included for the following: (1) Pipe network laying method; and (2) Tool for laying a main pipe and sewer pipe.