A method of and system for cleaning a fire main associated with a deluge system

摘要

A method of cleaning a fire main associate with a deluge system comprises coupling a fluid injection subsystem 202 and a fluid collection subsystem 204 respectively to an inlet 114 and an outlet 114 of a first pair of access points to the fire main; injecting a chemical treatment fluid 214 into the fire main via the inlet 114 and causing it to flow along a section of the fire main and out through the outlet 114 while the fire main is in an operative condition associated with a deluge system. The system 200 for treating the fire main is also claimed and includes a pump for injecting the chemical treatment fluid into the fire main. Preferably the method comprises biociding the fire main with a solution of chlorine dioxide to treat or remove tuberculation from the fire main.