Lelit ULKA ARS Cime Fluid O Tech Olab vibration coffee pump ULKA EX5, EP5 Blue Star Coffee Pompe Valvole Lelit Elektra, La Pavoni, Bugatti, Isomac, Pontevecchio, Quick Mill, Lelit, Zacconi 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