Lelit Victoria: Priming the Vibratory Pump Lets see if this will Improve something. Im sure it will reduce the noise by 40% But they do say a pressure regulator helps with noise and to stabilize water flow aswell Olab Lelit Silent Green Pump Assembly Replace Gaggia Classic pump with quieter option? Hi team. For some time now, I've noticed a strange pump behavior in my Sage Barista Pro. This is my third Sage espresso machine. The first classic Barista worked for a few years, and I upgraded to the Replace Gaggia Classic pump with quieter option?