Comment stsetch SNF 2008-02-28 09:32:45: Update

Pumped out the C4F8 gas line to the gas cylinder. Set the regulator pressure to 27 psi. Flowed C4F8 for 1 hour at max flow with no problems. Suspect that the regulator might have a creep problem which caused excess pressure to build up in the line. The high line pressure might have caused liquid to form in the line. STSetch2 was not affected by the liquid in the line because it has a regulator at the tool. Will order a new regulator and we will also continue to monitor the line pressure.