*Did not stop Y-end rotating pumps Friday evening as logged.  Instead, I stopped the purge air and QDP80 pumps this morning*  

No flow out dewar exhaust line, pressure now on scale but still not high enough -> Backed adjuster screw on economizer valve 1/2 ccw and flow started -> I will adjust this 1/2 turn cw every 24 hours until dewar vapor pressure reaches 10psi then should be able to pump Y-end VE without "low N2 flow" warning.