<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Would anyone know if having a pressure gauge or a sea-water depth gauge in a vacuum environment could adversely affect the gauge? Since I'm not to savy with the internal workings of analog pressure gauges I thought I might ask the group. I'm about to pull a vacuum on my pressure hull and the thought occurred to me.</DIV><DIV> </DIV><DIV>Brian Cox</DIV><DIV> </DIV></DIV>