Replace Gaggia Classic pump with quieter option? 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 Any suggestions on how to reduce the pump noise while brewing with a GC? 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