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 Hello baristas, I managed to reduce noise upgrade my Rancilio Silvia X PRO. I think anyone can do it, no special knowledge is required. 1. Changed the vibration pump to the quietest OLAB Hey guys,, Just a little tune up and update on my Classic: ulka pump replaced with olab's silent green pump very close to a finished project. But there is still things to come :) possible by the end Part Pumps 1st line.com Lelit Victoria: Priming the Vibratory Pump