METHOD OF CLEANING A POTABLE WATER DISTRIBUTION PIPING SYSTEM

摘要

A method of cleaning a potable or non potable water distribution piping system is described. A section of pipe to be cleaned of deposited sediments incrusted on an inner wall thereof is identified and isolated by closing valves leading to service conduits. Two fire hydrants are identified which are connected to the section of pipe to be cleaned and an air compressor is connected to a nozzle of one of these hydrants. A reservoir containing a sediment dislodging product is connected to another hydrant nozzle of that fire hydrant. One of the valves in the vicinity of the fire hydrant to which the air compressor is connected is open to create a minimal water flow. The nozzle of the other fire hydrant is opened and the compressor is operated to inject air under pressure inside the section of pipe to be cleaned. Simultaneously, the sediment dislodging product is injected into the pipe section to be cleaned through the fire hydrant. The water turbulating through the section of pipe to be cleaned is flushed by opening a nozzle of the other fire hydrant.