So do you think we can rule out the 3-way?
Dose and grind are pretty good. I have a Super Jolly and can consistently achieve a good espresso with a 2x yield recipe: 20g in 40g out in ~30seconds. Previously it would be about 3-4 seconds until first drop, and give a good looking extraction throughout (using a naked PF).
However with this poor flow it's now about 12 seconds until first drop and then quite a watery extraction.
Todo:
- double check the OPV overflow tube and see if it's still dripping out water, both during extraction and flushing without a PF.
- Look for any leaks or water internally
Dose and grind are pretty good. I have a Super Jolly and can consistently achieve a good espresso with a 2x yield recipe: 20g in 40g out in ~30seconds. Previously it would be about 3-4 seconds until first drop, and give a good looking extraction throughout (using a naked PF).
However with this poor flow it's now about 12 seconds until first drop and then quite a watery extraction.
Todo:
- double check the OPV overflow tube and see if it's still dripping out water, both during extraction and flushing without a PF.
- Look for any leaks or water internally

I'm sure tightening the OPV valve helped otherwise I wasn't able to get the necessary pressure in the brew chamber to backflush the junk stuck in the 3-way valve.
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