Yeah I believe the expansion valve knob on the machine acts like a pressure profiler. So you can play with the pressure at the group head during your extraction.
@2011dtish21
2 жыл бұрын
@@declancronin8079 It is noted that the knob is specifically NOT designed to do such a thing.
@declancronin8079
2 жыл бұрын
@@2011dtish21 Okay, I stand corrected. Thanks for the heads up 😊
@Ramarraro
2 жыл бұрын
@@declancronin8079 on a video released by ECM says that the knob must be not adjusted while the pump is running.
@TheComaProject
2 жыл бұрын
You can add the ECM Flow Valve. Costs around £190 tho!
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