Originally posted by MrJack
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How adjusting my brew pressure fixed everything
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Yes- the distinction in a rotary pump machine is that the bypass is normally set to a nominal 9Bar whereas you set the expansion valve to 12 bar- to protect in the case of a faulty bypass. Rocket Espresso actually do it with the vibe pump Giotto PID as well.Last edited by TC; 22 April 2016, 08:09 PM.
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