On day 6 of a 7 day stint. So 72 hours for this week alone, getting burnt out. It's just me and anywhere from 60-120 trucks a day. I load all the hyrogen and o2, n2, Ar, when the shop needs me to and calibrate the analyzers and change out cylinders and fix all the small shit that goes wrong. Usaully not so bad, but we are stupid short handed this week and its basically been me on nites and the other guys on days all week.