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About DayZer0

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  1. I realised the current lockhills differs from what was originally shown in this thread. It's now 26mg/l of Ca for example (rather than 20). Is this 'updated' version still OK and espresso machine safe? Sent from my SM-G975F using Tapatalk
  2. How did you get on pulling some shots? I have the same machine and it cycles 1.5 to 1.35. This is how it came. At one point I opened up the machine and reduced it slightly. The cycle was perhaps 0.1 lower. But it seems to have drifted back up. After a long idle I need to flush 100ml to stop boiling. I've ordered a coffee sensor so will let you know if that shows anything interesting. Sent from my SM-G975F using Tapatalk
  3. Understood. I think I've realised a fundamental misunderstanding of the machine that led to my earlier question. I thought there was a seperate water circuit used to to warm the group rather than water cycling back through the HX. This meant I imagined a very simple system where water went straight from the tank to the HX to the coffee only when the pump was on. Hence I imagined a fixed volume of water 'sitting still' in the HX tube becoming superheated. In reality I think the water cycles through the system and this means that when the pump starts you are also mixing super heated water with tank water. I can see how this makes the whole thing more complex to model! Does that make sense? Sent from my SM-G975F using Tapatalk
  4. Wow thanks Dave. That was very interesting. Do you or anyone have any good links to explanations of the hx system used by ECM (this machine in particular is even better). I'd be interested now in learning more about the engineering (than the very high level HX graphics you see) In terms of the tests you describe. I think I'd need to invest in a Coffee Sensor for the group head to do that level of testing. Maybe a project for Jan! Sent from my SM-G975F using Tapatalk
  5. Dave can I ask you a technical question. I've been thinking about flushes and wondered if the flush volume will always be the same regardless of boiler pressure? Isn't the volume of water sitting in the heat exchanger always the same and it will always super heat eventually. This might mean the flush volume after a short wait will be different and different boiler temps. But would reach an equilibrium eventually. Sent from my SM-G975F using Tapatalk
  6. Thank you! Sent from my SM-G975F using Tapatalk
  7. Thanks for the idea. I just looked then up but sounds like they don't soften water. Sent from my SM-G975F using Tapatalk
  8. Out of interest. What orientation should I have the two hole tip for best results? Sent from my SM-G975F using Tapatalk
  9. I also went back from 5 to 2 this weekend. Initial results seem better, especially considering that I mainly do small volumes. I believed that the very strong whirlpool with the 5 was going to give me better incorporation of the foam, but results don't back that up. Sent from my SM-G975F using Tapatalk
  10. I had a couple of questions about the charts above. 1) If the flush max and shot max are around the same (or within 1 deg C) then the flush appears to make little difference. why would you bother ? I suppose i would've expected the flush part to run 100+ and the the subsequent shot to run cooler. 2) How important is the Shot max/min vs the average temp over the extraction? Does a high temp for the first few seconds matter if the temperature drops off for the rest of the shot. Thank you!
  11. Interesting thread, keep the updates coming! (unfortunately I cant help with your question above though sorry)
  12. Still trying to get better at Latte Art at home. They make it look so easy on youtube! I wanted to ask if it's actually realistic to get very good latte art at home on a prosumer HX machine (ECM)? I don't want to get frustrated simply by having unrealistic expectations of what's achievable. I expect you will say it's practice, technique and milk-type - no excuses!
  13. Dear ecm owners Has anyone experimented with the different stream tips available? On my Slim I recently tried the 5 hole based (up from stock 2 hole). I wanted to be able to get a better roll in the pitcher and steam faster. The added power is immense but potentially too much! Would trying the 4 hole be a good option or is it actually pretty similar to the 5 and I should just try and get used to wielding the added power? Thanks
  14. Fair point. A starter kit is so cheap that I'll probably give it a go out of curiosity. I can then make better judgement on hassle and filter life.
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