Direct me if I am wrong, but I did a search & did not find this topic already.
At my work we have a 2 group Rio, each group seems to be completely different. Pulling two basically identical shots each weighed & tamped equally there is ~10 to ~13sec difference. So if we dial in for one side the other is horrible, the is no happy medium. Any advice or tips would help. A coworker recently took the machine home to descale it, found hardly any buildup in boiler, it had not been descaled in ~6 years. He mentioned it had massive amounts of buildup on what I assume is near the group ( I am not familiar with the inner workings at all! ) It has become really frustrating, the groups have always had a slight difference but this is awful.
-please help
+ thanks much
- I will try to get more info together possibly some pics
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