just to confirm - the pressure release valve you installed is attached ONLY to the water line that goes to the group head, correct? i.e. the your wand still has 14 bars of pressure (?) also looking for where i can find this part (my oscar 2 is being shipped right now) - would a valve for a silvia work in this situation?
This video is just posted to be helpful, with a fix for a issue with a product, it is an honest opinion about a brand i like, but a model that falls short on producing a good result.
They have now released the "Professional Pack" version which is a little more expensive but includes the commercial OPV and Pressurestat that everyone's been installing themselves.... so they've kinda listened -- same with their next model up
Wow, thanks for the info, I was actually thinking of buying the same machine in the coming weeks but after watching this video I now have serious doubts . Any other similarly priced machine with heat exchanger you recommend?
Apparently the Nuova Simonelli Musica has a the valve fitted as standard. Lots of good Italian machines out there like ECM, Rocket, lelit, The Oscar is good too, solid construction just needs the missing part fitted !!
Thanks for the information. Today my machine has stopped pumping water, instead steam is coming out of the group head. Not sure what causes this. If you have an idea please let me know 🙏
I am a newbie to espresso at home and I have a stupid question to ask. I am using an entry level EC680 with a pump that produce maximum pressure of 15bar. I wonder if the coffee puck itself can serve as a restrictor and lower the pressure when water get into the coffee puck. My thinking is even the pump create 15 bar pressure, how fine/coarse the coffee is controlling how much water going through and at what rate. As a result, the water pressure will down to around 9 bar and we are considered to be brewing at 9 bar. I tried to research if there is an opv in my EC680 to release the excess pressure created by the pump but no result so far.... As I am considering to upgrade my espresso machine to a heat exchanger, grateful if you can share your insight with me.
Im not familiar with the Delongi that you have, I have seen many basic machines place a restrictor in the basket or in the handle ( portafilter) to slow the flow, not the correct way in my opinion. Commercial machines and good domestic machines have baskets with no restrictions in the basket, and no restrictions in the handle, check a picture of a commercial basket and handle they are straight thru. Now trying to control the flow of the shot by adjusting the grind will work to some extend, however if you have 12bar of pressure then adjusting the grind to super fine ( powder) wouldn't taste good. Correct machine pressure has to be the starting point. 8.5 to 9 bar. Otherwise you over saturate the grinds and you end up with a percolated coffee not espresso. Hope that helps. Look for a machine w a commercial size group handle and preferably a commercial brand.
For similar price range,,, Expobar Office Control or Office Pulser, La Nuova Era Cuadra ii, Bezzera BZ10, can all be interesting choices. I'm currently in the market for premium home machine doing some research. 😅
Hi Really you made a great job .. I have two questions please.. Q1\ I have Oscar2 since 4 years ago.. but Last weeks I feel steam wand is bubbling the milk not frothing I tried with my brother new oscar2 and it was perfect with his oscar2.. I clean mine with backflush by (cafetto espresso desccaler) but still no change Q2\ Will I get any improvement in general if I install (Sirai pressure stat)? Thanks alot
A1: Descale your boiler ... backflushing is only for cleaning the grouphead. Descaling is easy since oscar has a draining valve. If that doesn't fix it, it means you need to increase the boiler pressure from your pressurestat. but this will mean increasing your brewing temperature. A2: I believe installing an OPV and a Sirai pressurestat is a great upgrade and you will notice a big difference.
Look on Google there are pic of how it needs to be installed after the pump, I had to cut a piece of plastic of the base plate to fit it and stop it vibrating
Hi So true about this machine. I was able to check the pressure on mine and it was around 12 bars. I installed an OPV from Elektro's and dialed it down to 9 and then to 8 bars. I have read up on modifying the flow of the Oscar II with a Synesso ruby flow restrictor/gigler at the solenoid valve, removing the 0.7mm gigler from pump (07300860), installing a 3.2mm gigler on a hot side of the group, and relocating the original hot side gigler 3mm (07300225) to the cold side of the group. Have you tried this yet? I got a Synesso ruby and a 3.2mm gigler and then opened my Oscar 2. I installed the ruby in the solenoid valve just before the group head. Then I tried to replace the 3.0mm gigler behind the grouphead but the nuts on the copper pipes are stuck. Same with the 0.7mm gigler at the pump. I assume there may be calcium build up. Any suggestions? Thank you so much for the great information and your help!
This machine now comes with: NEW Features! - Steam wand COOL TOUCH swivel 360° with steam tip 4 holes - Anti-vacuum valve - Gigleurs to improve thermal stability - Over Pressure Valve (BYPASS adjusted at 9 bars) - Professional Pressurestat SIRAI/ASCO Is is going to be a good setup?
Awesome vid! Have the machine and have exactly the problems you mentioned. Will probably swap with a bezzera elise.
just to confirm - the pressure release valve you installed is attached ONLY to the water line that goes to the group head, correct? i.e. the your wand still has 14 bars of pressure (?)
also looking for where i can find this part (my oscar 2 is being shipped right now) - would a valve for a silvia work in this situation?
This video is just posted to be helpful, with a fix for a issue with a product, it is an honest opinion about a brand i like, but a model that falls short on producing a good result.
They have now released the "Professional Pack" version which is a little more expensive but includes the commercial OPV and Pressurestat that everyone's been installing themselves.... so they've kinda listened -- same with their next model up
Alternative Brewing has the "Professional" one for $420 more than the "Standard" one! Oyuch!
I just acquired one used and I'm having issues where nothing really comes out. Would you know what the issue is?
Wow, thanks for the info, I was actually thinking of buying the same machine in the coming weeks but after watching this video I now have serious doubts . Any other similarly priced machine with heat exchanger you recommend?
Apparently the Nuova Simonelli Musica has a the valve fitted as standard. Lots of good Italian machines out there like ECM, Rocket, lelit, The Oscar is good too, solid construction just needs the missing part fitted !!
Just bought one of these great machine heaps of steam. Ordered the opv today
Thanks for the information. Today my machine has stopped pumping water, instead steam is coming out of the group head. Not sure what causes this. If you have an idea please let me know 🙏
Where can I buy the stuff for the mods?
Thank you - you saved me from throwing my $ out the window!
I am a newbie to espresso at home and I have a stupid question to ask. I am using an entry level EC680 with a pump that produce maximum pressure of 15bar. I wonder if the coffee puck itself can serve as a restrictor and lower the pressure when water get into the coffee puck. My thinking is even the pump create 15 bar pressure, how fine/coarse the coffee is controlling how much water going through and at what rate. As a result, the water pressure will down to around 9 bar and we are considered to be brewing at 9 bar. I tried to research if there is an opv in my EC680 to release the excess pressure created by the pump but no result so far....
As I am considering to upgrade my espresso machine to a heat exchanger, grateful if you can share your insight with me.
Im not familiar with the Delongi that you have, I have seen many basic machines place a restrictor in the basket or in the handle ( portafilter) to slow the flow, not the correct way in my opinion. Commercial machines and good domestic machines have baskets with no restrictions in the basket, and no restrictions in the handle, check a picture of a commercial basket and handle they are straight thru.
Now trying to control the flow of the shot by adjusting the grind will work to some extend, however if you have 12bar of pressure then adjusting the grind to super fine ( powder) wouldn't taste good. Correct machine pressure has to be the starting point. 8.5 to 9 bar. Otherwise you over saturate the grinds and you end up with a percolated coffee not espresso. Hope that helps. Look for a machine w a commercial size group handle and preferably a commercial brand.
@@coastcafeequipment thank you for your detailed reply, seems its a smarter choice to get a machine with opv, thanks
For similar price range,,,
Expobar Office Control or Office Pulser,
La Nuova Era Cuadra ii,
Bezzera BZ10,
can all be interesting choices.
I'm currently in the market for premium home machine doing some research. 😅
@@blizzbee thank you mate. After doing some research, i tends to go straight to double boilers like LMLM
@@jerrymakhk that could absolutely end all of your hesitations and problems lol 👍
Hi
Really you made a great job .. I have two questions please..
Q1\ I have Oscar2 since 4 years ago.. but Last weeks I feel steam wand is bubbling the milk not frothing I tried with my brother new oscar2 and it was perfect with his oscar2.. I clean mine with backflush by (cafetto espresso desccaler) but still no change
Q2\ Will I get any improvement in general if I install (Sirai pressure stat)?
Thanks alot
A1: Descale your boiler ... backflushing is only for cleaning the grouphead. Descaling is easy since oscar has a draining valve. If that doesn't fix it, it means you need to increase the boiler pressure from your pressurestat. but this will mean increasing your brewing temperature.
A2: I believe installing an OPV and a Sirai pressurestat is a great upgrade and you will notice a big difference.
I agrees there is no sense to buy it, too many flaws that make extraction process worse
The valve is a Fluid o tech OPV valve. Should be able to order it from the supplier of your machine
Thank you, I really appreciate it.
If you have a lot of trouble i can see if can get you one all depending where in the world you are 😉
Look on Google there are pic of how it needs to be installed after the pump, I had to cut a piece of plastic of the base plate to fit it and stop it vibrating
Im looking for the part, and I'll look also for the video.
You should do a video on it :)
Ya mine was new and I thought i had a faulty gasket as it leaked like crazy
I believe they have updated the machine, but yeah that sucks
Hi So true about this machine. I was able to check the pressure on mine and it was around 12 bars. I installed an OPV from Elektro's and dialed it down to 9 and then to 8 bars.
I have read up on modifying the flow of the Oscar II with a Synesso ruby flow restrictor/gigler at the solenoid valve, removing the 0.7mm gigler from pump (07300860), installing a 3.2mm gigler on a hot side of the group, and relocating the original hot side gigler 3mm (07300225) to the cold side of the group. Have you tried this yet?
I got a Synesso ruby and a 3.2mm gigler and then opened my Oscar 2. I installed the ruby in the solenoid valve just before the group head. Then I tried to replace the 3.0mm gigler behind the grouphead but the nuts on the copper pipes are stuck. Same with the 0.7mm gigler at the pump. I assume there may be calcium build up. Any suggestions? Thank you so much for the great information and your help!
Its true. But the price reflects it. I need to do the OPV myself. Have leaks all the time.
Can you send me the valve details. I'm so frustrated with mine. Pleaseeeee
th-cam.com/video/RAp9UuifYOE/w-d-xo.html
Thank you so much!
I mean if u r willing to install opv mod than its fine to buy it
TBVH 15 bars of pressure should not cause leaks. How do I know. Cause I've done it multiple times. It was a gasket issue
A. Yes it does leak if you want coffee with crema.
B who wants to extract coffee at 15 Bar? Not me
@@coastcafeequipment not here to fight but you do you.
You just have to adjust the pressure valve man...no big deal, and it's not even necessary
No not the fix for this issue
This machine now comes with:
NEW Features!
- Steam wand COOL TOUCH swivel 360° with steam tip 4 holes
- Anti-vacuum valve
- Gigleurs to improve thermal stability
- Over Pressure Valve (BYPASS adjusted at 9 bars)
- Professional Pressurestat SIRAI/ASCO
Is is going to be a good setup?
A mi no me pasa agua del estanque al motor
English pls