:-? Hi Gavin,Originally Posted by Gavin1 link=1207720043/0#0 date=1207720043
Your brew pressure was adjusted to 9.5 bar with the use of an accurate portafilter pressure gauge as a part of the bench test and calibration of your machine. I leave it 0.5 bar high as we frequently see the loss of around 0.5 bar as the pump "beds in" in the first month or two...
Keep in mind that damage due to tinkering is not covered by warranty ;)
As for boiler size, the Giotto and Expobars are 1.8L and the VBM is a heap bigger than that.