Is there a chart somewhere that shows me the volume of water required (after a pipeline is full) to raise the pressure to 200#s?? I'm working a COE job and I'm required to reach test pressure by adding not more than 10 gallons of water once the line is full. I have a 12" welded steel main, a 6" welded steel main, a 10" ductile iron main with flexible vic joints and an 8" ductile iron main with flexible vic joints. It seems to me that each line may require a different volume of water to reach test pressure depending upon the pipe material, the type of joints, the lining of the pipe (cement lined DI) and etc. This COE requirement seems very arbitrary. Any ideas??
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