NEW PASSO A PASSO MAPA PARA FREEZE DRYER CANADA

Do you have any vacuum gauges at all to test the pump? ( Though I doubt that is the problem based upon your tests )Reattached hose and ran another full system test (results, 750 mTorr lowest steady reading - looking through the oil level window, some bubbling seen in oil even after an hour of pumpdown - some "air" noises from pump)The best choice I