...using the Alex Duetto (rotary pump) if you want to preinfuse you have to actuate the pump cam lever 'til it clicks then elevate it a bit more but before the pump cuts in. This will allow internal line
pressure water out of the group. When your first drip appears ( or the 'ring' with a naked) pull the
lever fully up and pour your shot.
pressure water out of the group. When your first drip appears ( or the 'ring' with a naked) pull the
lever fully up and pour your shot.
The E61 is designed to pre-infuse, even with a Rotary pump. !



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