Rocket Giotto PP V2 with vibe pump.. lift the brew lever with no PF inserted and the group flushes with the brew gauge reading zero ( as you might expect with no puck to create pressure )
Rocket R58 with Rotary pump..repeat as above , no PF, group flushes, but the brew gauge reads 9-10 bar ? ..why ??
I suspect this may be the same on the Evoluzione V2 with rotary pump also ?
How would you know if your grind or dose was way off if the brew gauge reads 9 bar even with no PF ??
Rocket R58 with Rotary pump..repeat as above , no PF, group flushes, but the brew gauge reads 9-10 bar ? ..why ??
I suspect this may be the same on the Evoluzione V2 with rotary pump also ?
How would you know if your grind or dose was way off if the brew gauge reads 9 bar even with no PF ??

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