📹 Profitec Pro 300: Hydraulic System Internal Tour Updated February 14, 2022 18:29 Learn about the internal hydraulic components of the Profitec Pro 300 semi-automatic espresso machine. Profitec Pro 300: Internal Tour of Hydraulic System Reservoir (00:00) Reservoir Socket (00:33) Inlet & Return Tubes (01:28) Inline Filter (01:46) Pump (02:35) Valve Tree (03:17) Fill Valve Solenoid (03:38) Non-Return Valve (03:52) Fill Level Probe (04:03) Steam Valve (04:31) Pressure Gauge (04:56) Pressurestat (05:23) Vacuum Relief (05:40) Safety Valves (06:12) Hot Water Tap (07:22) OPV - Over Pressure Valve (07:50) Brew Boiler (08:12) Flow Issues (10:18)