hi
Mod my gaggia espresso with preheat tube, pressure gauge and ... but adjust opv with my pressure gauge is ok? or require portafilter gauge?
thank
watch my setup with this video
https://www.youtube.com/watch?v=jwbO6Fveq-I
Mod my gaggia espresso with preheat tube, pressure gauge and ... but adjust opv with my pressure gauge is ok? or require portafilter gauge?
thank
watch my setup with this video
https://www.youtube.com/watch?v=jwbO6Fveq-I


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